id:A068042 - OEIS Search Results

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Number of subsets of {1,2,3,...,n} that sum to 0 mod 21.

+0
2

1, 1, 1, 1, 1, 1, 2, 6, 14, 26, 49, 99, 197, 391, 782, 1564, 3123, 6244, 12490, 24970, 49940, 99880, 199738, 399472, 798940, 1597844, 3195684, 6391368, 12782668, 25565336, 51130664, 102261174, 204522354, 409044702, 818089110, 1636178220 (list; graph; listen)

	OFFSET	`0,7`
	CROSSREFS	`21st row of A068009.` `Sequence in context: A063620 A162716 A138318 this_sequence A068041 A101586 A121968` `Adjacent sequences: A068039 A068040 A068041 this_sequence A068043 A068044 A068045`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen, Feb 11 2002`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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