id:A134983 - OEIS Search Results

Search: id:A134983

Displaying 1-1 of 1 results found.

page 1

Number of ways of placing n rooks on an n X n chessboard with the topology of a Klein bottle.

+0
1

1, 2, 4, 12, 40, 168, 784, 4272, 25504, 171168, 1242688, 9915072, 84714112, 783454848, 7697178880 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`R. W. Whitty, Rook polynomials on two-dimensional surfaces..., Discrete Math., 308 (2008), 674-683.`
	CROSSREFS	`Adjacent sequences: A134980 A134981 A134982 this_sequence A134984 A134985 A134986` `Sequence in context: A074034 A062962 A033472 this_sequence A090959 A126942 A126947`
	KEYWORD	`nonn`
	AUTHOR	`njas, Feb 08 2008`

page 1

Search completed in 0.002 seconds

Last modified January 8 02:43 EST 2009. Contains 152824 sequences.