id:A025191 - OEIS Search Results

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a(n) = Sum{T(n,k)}, k = 0,1,...,n, where T is the array defined in A025177.

+0
3

1, 2, 4, 11, 33, 97, 288, 855, 2544, 7577, 22590, 67399, 201215, 601017, 1795966, 5368659, 16053417, 48015873, 143649102, 429842511, 1286452725, 3850770081, 11528245602, 34517105907, 103360732956, 309543786441, 927106804368, 2776994293355 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Conjectures: a(n) = A027914(n)-A027914(n-1) = 1/2*(A081673(n)-A081673(n-1).`
	CROSSREFS	`Sequence in context: A123404 A123439 A026164 this_sequence A035354 A127782 A002846` `Adjacent sequences: A025188 A025189 A025190 this_sequence A025192 A025193 A025194`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified July 25 02:12 EDT 2008. Contains 142294 sequences.

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