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A000516 Number of equivalence classes of n X n matrices over {0,1} with rows and columns summing to 5, where equivalence is defined by row and column permutations. Isomorphism classes of bicolored 5-regular bipartite graphs, where isomorphism cannot exchange the colors. +0
2
0, 0, 0, 0, 1, 1, 4, 51, 3529, 601055, 156473848 (list; graph; listen)
OFFSET

0,7

LINKS

Index entries for sequences related to Latin squares and rectangles

CROSSREFS

Cf. A000512, A000513.

Sequence in context: A016078 A122464 A048995 this_sequence A000854 A110908 A101354

Adjacent sequences: A000513 A000514 A000515 this_sequence A000517 A000518 A000519

KEYWORD

nonn

AUTHOR

Eric Rogoyski

EXTENSIONS

Definition corrected by Brendan McKay (bdm(AT)cs.anu.edu.au), May 28 2006

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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