id:A070894 - OEIS Search Results

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Number of nonempty subsets of the set of vertices of a regular n-gon in the plane such that their center of gravity is the center of the polygon.

+0
3

1, 1, 3, 1, 9, 1, 15, 7, 33, 1, 99, 1, 129, 37, 255, 1, 999, 1, 1155, 133, 2049, 1, 9999, 31, 8193, 511, 16899, 1, 146853, 1, 65535, 2053, 131073, 157, 999999, 1, 524289, 8197, 1336335, 1, 11680389, 1, 4202499, 54871, 8388609, 1, 99999999, 127, 45435423, 131077 (list; graph; listen)

	OFFSET	`2,3`
	CROSSREFS	`This is A103314(n) - 1: see that entry for much more information.` `Sequence in context: A049967 A082171 A164795 this_sequence A090261 A130599 A157674` `Adjacent sequences: A070891 A070892 A070893 this_sequence A070895 A070896 A070897`
	KEYWORD	`nonn`
	AUTHOR	`Sharon Sela (sharonsela(AT)hotmail.com), May 24 2002`
	EXTENSIONS	`Edited by N. J. A. Sloane (njas(AT)research.att.com) Jan 19 2008 at the suggestion of Max Alekseyev and M. F. Hasler.`

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

AT&T Labs Research