id:A094575 - OEIS Search Results

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Numbers n with property that binomial (2n, n) / (n-1) is an integer.

+0
3

2, 3, 5, 7, 16, 21, 25, 29, 41, 43, 46, 67, 73, 78, 89, 92, 105, 111, 127, 141, 154, 157, 171, 188, 191, 205, 210, 211, 221, 229, 232, 239, 241, 267, 277, 300, 305, 309, 313, 316, 323, 326, 331, 346, 369, 379, 415, 421, 430, 436, 441, 443, 451, 460, 461, 465 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Select[ Range[468], Mod[Binomial[2#, # ], (# - 1)] == 0 &]`
	CROSSREFS	`Cf. A000108, A094453, A094576.` `Sequence in context: A058702 A024377 A025069 this_sequence A145968 A059471 A059496` `Adjacent sequences: A094572 A094573 A094574 this_sequence A094576 A094577 A094578`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), May 11 2004`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research