2,1

See A146304 for algorithm and PARI code to produce this sequence.

Andrew Howroyd, Table of n, a(n) for n = 2..100

Eric Weisstein's World of Mathematics, Maximal Independent Vertex Set

Eric Weisstein's World of Mathematics, Minimal Vertex Cover

Eric Weisstein's World of Mathematics, White Bishop Graph

Row sums of A288182.

Cf. A146304, A290594.

Sequence in context: A130102 A151384 A300460 * A113464 A054093 A098557

Adjacent sequences: A290610 A290611 A290612 * A290614 A290615 A290616

nonn

Eric W. Weisstein, Aug 07 2017

Terms a(12) and beyond from Andrew Howroyd, Aug 09 2017

approved