id:A081868 - OEIS Search Results

Search: id:A081868

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Numbers n such that sum(k=1,n,C(2k,k) mod 3) is even.

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1, 2, 3, 10, 11, 28, 29, 36, 37, 38, 39, 82, 83, 90, 91, 92, 93, 108, 109, 110, 111, 118, 119, 244, 245, 252, 253, 254, 255, 270, 271, 272, 273, 280, 281, 324, 325, 326, 327, 334, 335, 352, 353, 360, 361, 362, 363 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A032804 A047473 A008509 this_sequence A092986 A006092 A015859` `Adjacent sequences: A081865 A081866 A081867 this_sequence A081869 A081870 A081871`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 12 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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