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3 Answers

Best answer
8 votes
8 votes
u can ans this by using concept of Bell no

1

1   2

2   3   5

5   7   10   15

and so on  for n=4 check 4th row ans will be 15
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admin asked Oct 9, 2015
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I just want to know how the value in the answers come like 2^n2 and 2^n^2-1 etc. Please make it clear.