A202592 a(n) = number of distinct (0,2)-graphs of vertex degree (or valency) n.

1, 1, 1, 2, 3, 8, 24, 96, 302

Offset

0,4

Links

Table of n, a(n) for n=0..8.

Brouwer, A.E. 0,2-graphs

Andries E. Brouwer, and Patric R. J. Östergård, Classification of the (0, 2)-graphs of valency 8, Discrete Mathematics 309.3 (2009): 532-547.

Eric Weisstein's World of Mathematics, (0,2)-Graph

Crossrefs

Sequence in context: A055981 A182212 A120260 * A002619 A286820 A129202

Adjacent sequences: A202589 A202590 A202591 * A202593 A202594 A202595

Keyword

nonn,more

Author

Eric W. Weisstein, Dec 21 2011

Status

approved