A231888 Number of maximal 3-independent sets in the 3-dimensional (3, 3, n) grid graph.

0, 7, 26, 57, 190, 646, 1914, 5960, 18824, 58248, 181196, 565328, 1759720, 5477376, 17062956, 53131824, 165443096, 515219344, 1604410136, 4996129756, 15558217340, 48448930636, 150871392396, 469819443204, 1463035474136, 4555944690588, 14187380873768

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, A231887, A231888, A217631, A217632.

Sequence in context: A059376 A206481 A049453 * A211645 A171340 A046433

Adjacent sequences: A231885 A231886 A231887 * A231889 A231890 A231891

Keyword

nonn

Author

N. J. A. Sloane, Nov 17 2013

Extensions

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

Status

approved