1,3

Table of n, a(n) for n=1..9.

Eric Weisstein's World of Mathematics, Bishop Graph

Eric Weisstein's World of Mathematics, Total Dominating Set

a(n) = A303229(n) * A303230(n). - Andrew Howroyd, Nov 16 2018

Cf. A303230 (black bishop graph).

Cf. A303229 (white bishop graph).

Cf. A304555, A321673.

Sequence in context: A112503 A007160 A195265 * A264876 A023018 A073386

Adjacent sequences: A321671 A321672 A321673 * A321675 A321676 A321677

nonn,more

Eric W. Weisstein, Nov 16 2018

a(7)-a(9) from Andrew Howroyd, Nov 16 2018

approved