A289902 -id:A289902 - cp's OEIS frontend

A287204 Number of independent vertex sets and vertex covers in the n-triangular honeycomb acute knight graph.

2, 8, 27, 144, 1331, 13824, 208575, 4741632, 140608000, 5870657088, 350253538649, 28635764824584, 3270761581689147, 524882236329014264, 117025388905265182783, 36405238728128712859232, 15833111238624255435917875, 9599917578598545475054063616

Offset: 1

Eric W. Weisstein, May 21 2017

nonn

Also row sums of A244500.

Stan Wagon, Graph Theory Problems from Hexagonal and Traditional Chess, The College Mathematics Journal, Vol. 45, No. 4, September 2014, pp. 278-287.
Eric Weisstein's World of Mathematics, Independent Vertex Set
Eric Weisstein's World of Mathematics, Vertex Cover

Cf. A244500 (coefficients of independence polynomial of triangular honeycomb acute knight graphs).

Cf. A287195, A289902, A287230, A287229, A027740.

a(15)-a(18) from Andrew Howroyd, Jul 17 2017

A304552 Number of total dominating sets in the n-triangular honeycomb acute knight graph.

Original entry on oeis.org

0, 0, 1, 112, 3375, 64000, 3730525, 695506456, 296474109632, 213878375483220, 277097671756733625, 698661245965852901376, 3571973803766628613975275, 36637997062083838981741624968

Offset: 1

Eric W. Weisstein, May 14 2018

Eric Weisstein's World of Mathematics, Total Dominating Set

Cf. A289902, A304554, A304557, A304563.

a(8)-a(14) from Andrew Howroyd, May 19 2018

cp's OEIS Frontend

A287204 Number of independent vertex sets and vertex covers in the n-triangular honeycomb acute knight graph.

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