id:A056615 - OEIS Search Results

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Binomial(2*n - 1, n - 1) - 1 (mod n^2).

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0, 2, 0, 2, 0, 29, 0, 34, 9, 77, 0, 61, 0, 51, 134, 34, 0, 137, 0, 9, 401, 123, 0, 269, 125, 171, 252, 475, 0, 811, 0, 290, 977, 869, 615, 673, 0, 363, 9, 409, 0, 755, 0, 1123, 1259, 531, 0, 1421, 1715, 1127, 2321, 1555, 0, 1919, 1940, 2171, 1814, 843, 0, 3527, 0, 963 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Binomial(2*n - 1, n - 1] - 1 (mod n^2) = 0 iff n is an odd prime.`
	MATHEMATICA	`Table[Mod[Binomial[2*n - 1, n - 1] - 1, n^2], {n, 1, 100}]`
	CROSSREFS	`Sequence in context: A137949 A019214 A137668 this_sequence A060989 A135298 A006996` `Adjacent sequences: A056612 A056613 A056614 this_sequence A056616 A056617 A056618`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 07 2000`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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