Asked by Dio
Find formula Number Sequences of
3, 10, 31, 94,.....
3, 10, 31, 94,.....
Answers
Answered by
Reiny
not arithmetic nor geometric
gave up and checked with Wolfram
found:
term(n) = (7(3^n) - 3)/6
http://www.wolframalpha.com/input/?i=pattern+%7B3,+10,+31,+94%7D
quite obscure, perhaps more terms would have helped.
gave up and checked with Wolfram
found:
term(n) = (7(3^n) - 3)/6
http://www.wolframalpha.com/input/?i=pattern+%7B3,+10,+31,+94%7D
quite obscure, perhaps more terms would have helped.
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