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What should be the next number in this series - 1, 2, 6, 30, 68, ??

+1 vote
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What should be the next number in this series - 1, 2, 6, 30, 68, ??
posted Jul 30, 2015 by anonymous

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3 Answers

0 votes

0^0+0 = 1
1^1 + 1 = 2
2^2 + 2 = 6
3^3 + 3 = 30
4^(4-1) + 4 = 68
5^(5-1) + 5 = 630

So answer is 630

answer Aug 23, 2015 by Rahul Chandel
0 votes

answer is 138

answer Nov 1, 2015 by anonymous
–1 vote

first tell weather it is correct that the answer is 138

answer Aug 23, 2015 by Mayursapre
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