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What is the next number in the series 31, 73, 141, 241, ??

+3 votes
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What is the next number in the series 31, 73, 141, 241, ??
posted Jan 13, 2014 by Salil Agrawal

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2 Answers

0 votes

using difference logic and then backtracking it,

Is it 385??

answer Jan 13, 2014 by Atul Mishra
No that is not correct answer...
0 votes

31 = 2^2 + 3^3
73 = 3^2 + 4^3
141 = 4^2 + 5^3
241 = 5^2 + 6^3

So next number is
6^2 + 7^3 = 379

answer Jan 14, 2014 by Luv Kumar
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