%I #12 Jun 10 2017 11:24:18
%S 0,7,26,57,190,646,1914,5960,18824,58248,181196,565328,1759720,
%T 5477376,17062956,53131824,165443096,515219344,1604410136,4996129756,
%U 15558217340,48448930636,150871392396,469819443204,1463035474136,4555944690588,14187380873768
%N Number of maximal 3-independent sets in the 3-dimensional (3, 3, n) grid graph.
%H Andrew Howroyd, <a href="/A231888/b231888.txt">Table of n, a(n) for n = 0..100</a>
%H R. Euler, P. Oleksik, Z. Skupien, <a href="http://dx.doi.org/10.7151/dmgt.1707">Counting Maximal Distance-Independent Sets in Grid Graphs</a>, Discussiones Mathematicae Graph Theory. Volume 33, Issue 3, Pages 531-557, ISSN (Print) 2083-5892, July 2013; see <a href="http://www.degruyter.com/view/j/dmgt.2013.33.issue-3/dmgt.1707/dmgt.1707.xml">also</a>.
%Y Cf. A197054, A231884, A231887, A231888, A217631, A217632.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Nov 17 2013
%E Terms a(13) and beyond from _Andrew Howroyd_, Jun 10 2017