id:A058783 - OEIS Search Results

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Number of n-rowed binary matrices with all row sums 4, up to row and column permutation; bipartite graphs with all nodes of degree 4 in a distinguished bipartite n-block, up to isomorphism.

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1, 1, 5, 30, 332, 6414, 226041, 12848128 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`Number of m-rowed binary matrices with all row sums equal to n, up to row and column permutation`
	CROSSREFS	`Cf. A050535, A050913, A058784, A058785.` `Sequence in context: A144498 A072213 A052172 this_sequence A042837 A162173 A166306` `Adjacent sequences: A058780 A058781 A058782 this_sequence A058784 A058785 A058786`
	KEYWORD	`more,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 28 2000`

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

AT&T Labs Research