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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. 3
0, 0, 0, 0, 1, 1, 4, 51, 3529, 601055, 156473848 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

LINKS

Table of n, a(n) for n=0..10.

Index entries for sequences related to Latin squares and rectangles

CROSSREFS

Cf. A000512, A000513.

Sequence in context: A235326 A210834 A287231 * A182044 A000854 A232517

Adjacent sequences:  A000513 A000514 A000515 * A000517 A000518 A000519

KEYWORD

nonn,more

AUTHOR

Eric Rogoyski

EXTENSIONS

Definition corrected by Brendan McKay, May 28 2006

STATUS

approved

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Last modified May 29 01:07 EDT 2017. Contains 287241 sequences.