A289883 Number of maximal independent vertex sets in the n-triangular honeycomb queen graph.

1, 3, 3, 11, 23, 73, 211, 651, 2371, 7401, 30151, 107713, 456409, 1888753, 8148451, 37754791, 170459451, 842310755, 4096595827, 20984546901

Offset

1,2

Links

Table of n, a(n) for n=1..20.

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

Crossrefs

Cf. A289709, A289893.

Sequence in context: A007022 A011950 A343465 * A280564 A281284 A281639

Adjacent sequences: A289880 A289881 A289882 * A289884 A289885 A289886

Keyword

nonn,more

Author

Eric W. Weisstein, Jul 14 2017

Extensions

a(14)-a(20) from Andrew Howroyd, Dec 03 2021

Status

approved