A284854 Number of independent vertex sets and vertex covers in the n-Keller graph.

16, 393, 26705, 18843905, 4403212671745

Offset

1,1

Links

Table of n, a(n) for n=1..5.

Eric Weisstein's World of Mathematics, Independent Vertex Set

Eric Weisstein's World of Mathematics, Keller Graph

Eric Weisstein's World of Mathematics, Vertex Cover

Crossrefs

Cf. A258935, A290607.

Sequence in context: A189849 A051360 A227390 * A269412 A269643 A071133

Adjacent sequences: A284851 A284852 A284853 * A284855 A284856 A284857

Keyword

nonn,more

Author

Eric W. Weisstein, Apr 04 2017

Extensions

a(5) from Andrew Howroyd, Mar 20 2018

Status

approved