Question 53165: What is the next number in the series
5,25,61,113,181,?
Answer by checkley71(8403) (Show Source):
You can put this solution on YOUR website! 5,25,61,113,181,265 (N+1)=N-(N-1)+16
20+16=36 & 25+36=61, 61-25=36+16=52 61+52=113, 113-61=52+16=68 113+68=181,
181-113=68+16=84 181+84=265
straight math addition & subtraction.
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