It is impossible to say what sequence comes after the given set of numbers. What I can do is to suggest what number might come next in the given sequence.
Using the rule
Un = (7n5 - 129n4 + 891n3 - 2859n2 + 4298n - 1488)/24 for n = 1, 2, 3, ...
the next number is 85.
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22
31.
31
(1) Take the difference of the two previous numbers in sequence (2) Add 4 to this difference. (3) Take the number from step #2 and add it to the previous number in the sequence. For example, to find the next number in the sequence: (1) 121 - 90 = 31 (2) 31 + 4 = 35 (3) 121 + 35 = 156
It is: 9