id:A116532 - OEIS Search Results

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Number of singular n X n rational {0,1}-matrices with no zero rows or columns and with all rows distinct, up to permutation of rows.

+0
5

0, 0, 3, 285, 50820, 23551920, 31898503077, 134251404794199 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n) = A054780(n) - A088389(n).`
	CROSSREFS	`Cf. A000410, A116506, A116527.` `Adjacent sequences: A116529 A116530 A116531 this_sequence A116533 A116534 A116535` `Sequence in context: A139984 A057631 A058455 this_sequence A124357 A157579 A104821`
	KEYWORD	`more,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 03 2006`

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Last modified November 9 12:23 EST 2009. Contains 166233 sequences.