id:A133047 - OEIS Search Results

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Starting from the standard 12 against 12 starting position in checkers, the sequence gives the number of unique positions that can arise after n moves.

+0
1

1, 7, 49, 216, 805, 2733, 9105, 28123, 85340, 255800, 768155, 2265062, 6588759, 18667410, 51448497, 137051636 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`These numbers are generally smaller than those in A133046 because one line of play can transpose into another.`
	CROSSREFS	`Cf. A133047, A055213.` `Adjacent sequences: A133044 A133045 A133046 this_sequence A133048 A133049 A133050` `Sequence in context: A044145 A003530 A015953 this_sequence A141783 A094430 A113235`
	KEYWORD	`nonn,nice`
	AUTHOR	`Jonathan Schaeffer (jonathan(AT)cs.ualberta.ca), Dec 27 2007`

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Last modified October 13 09:05 EDT 2008. Contains 145008 sequences.

AT&T Labs Research