# Questions tagged [number-sequence]

A puzzle that asks for the pattern in a given number sequence.

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### Unlucky thirteen

These two separate sequences use the same rule and stop at the 13th term. 2, 1, 8, 5, 2, 5, 8, 6, 7, 9, 7, 7, 0 3, 1, 5, 3, 9, 2, 4, 3, 9, 7, 3, 1, 0 These examples are produced when the ...
1k views

### Staying grounded

I found a somewhat meaningful sequence that is not on OEIS yet, incredible! Here are the first 100 numbers of this sequence: ...
3k views

### Please find the missing number in the question [closed]

Find the missing number, and show how you found it.
964 views

### Next number in the sequence

Find the next three numbers of the number series : 0,0,3,20,115,?,? And please also tell the series this series is following
91 views

### solve it if you can [closed]

n = 11, j = 1, s = 9, m = ? If you solve it you are a genius.
2k views

### That gap is a bit jarring

... but there doesn't seem to be anything missing. $0,1,2,3,4,5,6,7,1527465$ What then could cause that rather large gap?
626 views

### A sequence of peculiar palindromes

My son Robin came up with this: 0550, 1001, 1111, 1221, 1331, 1441, 1551, 2002... What are the next 4 numbers? Solve it today!
125 views

### Number sequence 6

Fill in the correct number in this sequence: $16,32,40,88,92,172,?$ The options are: $178$,$176$,$174\frac{2}{3}$,$177$, and $175\frac{1}{3}$ At first, I thought the pattern was $2x+8$ but that ...
633 views

### The “Evan” Numbers

The Even numbers are simple: $2, 4, 6, 8, 10, 12, \dots$ The "Evan" numbers follow a tricky rule: $2, 4, 6, 30, 32, 34, 36, 40, 42, 44, 46, 50, 52, 54, 56, 60, 62, 64, 66, 2000, 2002, 2004, \dots$ ...
296 views

### Number sequence 5

Fill in the correct number in this sequence: 5 3 8 9 1 27 ? The options are: 18, 54, 38, 14 or 13. I can see the pattern of 3, 9, 27 but other than that I am clueless. Source: a publicly available ...
159 views

### Producing Integers

Came up with the idea for this one while I was scratching my head over another "what comes next" puzzle here on Puzzling.SE I wrote a small application which takes an integer and returns another ...
146 views

### Arrange 18 numbered cards in a special way

Given 18 cards with numbers 1 .. 9 on them (two cards with each digit), arrange them sequentially so that the distance between the identically marked cards is equal to the number written on the card. ...
2k views

### A tricky batch of four number sequences

What are the next few numbers in each of these integer sequences? Each of them has a clear and justifiable solution. 1, 2, 3, 5, 8, 9, 12, 20, 21, 22, ??, ??, ... 50, 49, 48, 46, 45, 44, 43, ...
653 views

### What is the next number in the given series?

I know that next number questions are not popular here, but this one is tough and I couldn't figure out the pattern. To give an idea one of the questions had a pattern of Prime(Fib(n)). So this is ...
795 views

### Calling all number sequence lovers!

What number follows in this sequence 93 1 855 45 593 500 241 ?
3k views

### Which number will replace the question mark

Here is a picture of a square. From the square, your task is to find out what number should replace the question mark and find a formula of it.
43 views

### Sequence puzzle in rows [duplicate]

The below is a number puzzle. It should be read left to right, top to bottom. Question 1: What is the next two rows of numbers? Question 2: How was this reached?
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### Through which number we can remove the question mark?

I'm trying to solve this puzzle but so much confused and can't understand even.Please help me to solve this puzzle and also explain briefly.
379 views

### Number puzzle - Next number in the sequence

I did a puzzle that made me calculate the last number, and I couldn't figure it out so I looked at the answer, but still don't understand how I get to that answer. Number sequence is ...
2k views

### Which two numbers replaces the question mark?

I was solving some number puzzles. I am finding difficulty in solving this puzzle: which two numbers will replace the question marks? I need answer with explanation.
307 views

### Replace ? by number

This chain of numbers is making confused.Help to find the answer with explanation.
328 views

### What number should come next?

1 3 10 12 14 21 ā Identify ā
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### MATH PUZZLE ABOUT SEQUENCE [closed]

In the array of numbers below, each number above the bottom row is equal to three times the number immediately below it. What is the value of x+y? ...
257 views

### What number should be next? (hints added) [closed]

1 2 3 4 5 10 13 22 103 ā” Identify ā” one more number added due to OEIS hint 1 : hint 2 : hint 3 :
202 views

### Puzzle in a Newspaper

The newspaper I got this morning was a little off, to say the least. The main headline proudly read: Horse squeals eight times, dubbed "octsqueal" Well, I decided to ignore that, and head over ...
3k views

### It's my birthday

Just like last year, my age is a number you can score with one dart. The year before that, it wasn't, and it won't be next year. How old am I?