id:A051224 - OEIS Search Results

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Number of ways of placing n nonattacking superqueens on n X n board (symmetric solutions count only once).

+0
4

1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 6, 22, 239, 653, 4089, 25411, 166463, 1115871, 8062150, 61984976, 497236090, 4261538564 (list; graph; listen)

	OFFSET	`1,11`
	COMMENT	`A superqueen moves like a queen and a knight`
	LINKS	`D. Bill, Durango Bill's The N-Queens Problem`
	CROSSREFS	`Cf. A051223, A002562.` `Sequence in context: A009366 A075811 A121796 this_sequence A062818 A154079 A012327` `Adjacent sequences: A051221 A051222 A051223 this_sequence A051225 A051226 A051227`
	KEYWORD	`nonn,more`
	AUTHOR	`Ulrich Schimke (ulrschimke(AT)aol.com)`
	EXTENSIONS	`a(20) from Bill link added Jul 25 2006` `a(21)..a(22) added from Bill's website. Max Alekseyev (maxale(AT)gmail.com), Oct 19 2008`

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