id:A081197 - OEIS Search Results

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Diagonal sums of A081130.

+0
1

1, 1, 4, 13, 44, 162, 643, 2724, 12259, 58423, 293902, 1555743, 8640526, 50222288, 304792741, 1927313470, 12673784445, 86517541197, 612134881624, 4482215342305, 33919417267456, 264951302794510, 2133720505175351 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)=Sum{k=0..n, k^(n-k) Binomial(n-k+2, 2)}.`
	CROSSREFS	`Sequence in context: A149429 A149430 A124463 this_sequence A005490 A035356 A165205` `Adjacent sequences: A081194 A081195 A081196 this_sequence A081198 A081199 A081200`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 11 2003`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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