A126731 Number of graphs on n nodes with edge chromatic number 5.

0, 0, 0, 0, 2, 38, 392, 4895, 68696, 1140623

Offset

1,5

Links

Table of n, a(n) for n=1..10.

Keith M. Briggs, Combinatorial Graph Theory

Crossrefs

A diagonal of triangle in A123962.

Sequence in context: A217214 A303618 A179503 * A216357 A046845 A098772

Adjacent sequences: A126728 A126729 A126730 * A126732 A126733 A126734

Keyword

nonn

Author

N. J. A. Sloane, Feb 16 2007

Status

approved