A219892 Number of directed 5-regular graphs on n nodes.

1, 4, 624, 1104045, 2983458766, 10922621656743

Offset

6,2

Links

Table of n, a(n) for n=6..11.

Gunnar Brinkmann, Generating regular directed graphs, Discrete Math., 313 (2012), 1-7.

Crossrefs

Column k=5 of A350910.

Cf. A096368, A219889, A219890, A219891, A219893.

Sequence in context: A215920 A210853 A232620 * A079103 A191953 A169619

Adjacent sequences: A219889 A219890 A219891 * A219893 A219894 A219895

Keyword

nonn,more

Author

N. J. A. Sloane, Nov 30 2012

Status

approved