A057981 - OEIS

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A057981

Number of singular n X n (-1,0,1)-matrices.

1, 33, 7875, 15099201, 237634987683 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Complement of A056989. Cf. A060722.` `Sequence in context: A136541 A183551 A114071 * A183237 A099828 A099827` `Adjacent sequences: A057978 A057979 A057980 * A057982 A057983 A057984`
	KEYWORD	`nonn,more`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Oct 23 2000.`
	EXTENSIONS	`a(5) from Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 20 2009`

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Last modified February 16 21:30 EST 2012. Contains 205971 sequences.