What is the next number of this series?
1 , 4 , 5 , 6 , 7 , 9 , 11 ?
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These are...
numbers not containing the letter "T". The next one is 100.
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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$\begingroup$ 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. $\endgroup$– hexominoMar 17 at 14:35