16
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What is the next number of this series?

1 , 4 , 5 , 6 , 7 , 9 , 11 ?

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0
29
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These are...

numbers not containing the letter "T". The next one is 100.

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0
-1
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I know this has already been solved but I have found another solution.

1,4 - 14
41+15=5,6 - 56 reverse of 56 is 65


65+14= 79

97+13=110

11, 0

0 can be the answer!

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1
  • 1
    $\begingroup$ Ideally, for such a short sequence, you want the explanation to be a simple as possible. There seem to be three different operations (concantenation, digit reversal and splitting) and two arbitrary constants (the first 15 and the difference of -1) which is overkill and it seems like you could almost fit any number you wanted by going to such lengths. $\endgroup$
    – hexomino
    Mar 17 at 14:35

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