A231887 Number of maximal 2-independent sets in the 3-dimensional (3, 3, n) grid graph.

0, 11, 46, 182, 1026, 4836, 23922, 118674, 584516, 2889306, 14266546, 70455052, 347980122, 1718525298, 8487343508, 41916544250, 207013446378, 1022380190332, 5049238367202, 24936725579450, 123155267567884, 608228181611074, 3003862808227186, 14835208208589988

Offset

0,2

Links

Andrew Howroyd, Table of n, a(n) for n = 0..100

R. Euler, P. Oleksik, Z. Skupien, Counting Maximal Distance-Independent Sets in Grid Graphs, Discussiones Mathematicae Graph Theory. Volume 33, Issue 3, Pages 531-557, ISSN (Print) 2083-5892, July 2013; see also.

Crossrefs

Cf. A197054, A231884, A231886, A231888, A217631, A217632.

Sequence in context: A006324 A372663 A256582 * A302449 A177370 A126672

Adjacent sequences: A231884 A231885 A231886 * A231888 A231889 A231890

Keyword

nonn

Author

N. J. A. Sloane, Nov 17 2013

Extensions

Terms a(13) and beyond from Andrew Howroyd, Jun 10 2017

Status

approved