id:A112740 - OEIS Search Results

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Row sums of number triangle A112739.

+0
2

1, 2, 4, 7, 13, 26, 58, 147, 423, 1366, 4880, 19039, 80281, 362914, 1747598, 8918299, 48024291, 271891710, 1613325844, 10005690695, 64702147429, 435311589418, 3041246276098, 22024930755299, 165082467634303, 1278742554953574 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=sum{k=0..n, sum{j=0..k, (2-0^j)*(n-1)^(k-j)}}.`
	CROSSREFS	`Sequence in context: A068031 A023431 A025246 this_sequence A136408 A103104 A103480` `Adjacent sequences: A112737 A112738 A112739 this_sequence A112741 A112742 A112743`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Sep 16 2005`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research