id:A114702 - OEIS Search Results

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Number of binary vectors (x_1,...x_(n-1)) satisfying Sum_{i=1..n-1} (-1)^i*i*x_i = 0 (mod n).

+0
1

1, 1, 2, 3, 6, 9, 16, 28, 52, 93, 172, 315, 586, 1091, 2048, 3855, 7286, 13797, 26216, 49929, 95326, 182361, 349536, 671088, 1290556, 2485504, 4793492, 9256395, 17895736, 34636833, 67108864, 130150493, 252645136, 490853403, 954437292 (list; graph; listen)

	OFFSET	`2,3`
	FORMULA	`a(2n-1) = A000048(2n-1), a(2n) = A000016(2n).`
	CROSSREFS	`Sequence in context: A118033 A048810 A017915 this_sequence A026768 A068604 A014868` `Adjacent sequences: A114699 A114700 A114701 this_sequence A114703 A114704 A114705`
	KEYWORD	`easy,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 18 2006`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 24 2008`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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