id:A101625 - OEIS Search Results

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A bisection of the Stern-Jacobsthal numbers.

+0
2

0, 1, 1, 5, 1, 21, 17, 69, 1, 277, 273, 1349, 257, 5141, 4113, 16453, 1, 65813, 65809, 329029, 65793, 1381397, 1118225, 4538437, 65537, 18088213, 17826065, 88081733, 16777473, 335549461, 268439569, 1073758277, 1, 4295033109, 4295033105 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`a(n)=sum{k=0..n, mod(binomial(2n-k, k-1), 2)2^(k-1)}; a(n)=A101624(2n+1).`
	CROSSREFS	`Cf. A002450.` `Sequence in context: A095368 A029757 A146056 this_sequence A051929 A167572 A147476` `Adjacent sequences: A101622 A101623 A101624 this_sequence A101626 A101627 A101628`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Dec 10 2004`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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