Question 1188494
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As I see from your post, you do hesitate to ask  " what is the next number ? "


You do it right,  because any number can be next, 


for example,  89,  {{{17/12}}},  -8,  {{{sqrt(13)}}},  {{{e^pi}}}   or   {{{pi^e}}}.



Mathematically,  this question makes no sense.