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Number of toroidal n X 3 binary arrays, allowing rotation and/or reflection of the rows and/or the columns.
1

%I #12 Jan 20 2018 16:10:46

%S 4,13,36,158,708,4236,26412,180070,1256914,8999762,65225244,477772294,

%T 3525803320,26185264801,195490126328,1466095545930,11038514989344,

%U 83401050695432,632087998742988,4803854169636124,36600736833265244,279496328812771427

%N Number of toroidal n X 3 binary arrays, allowing rotation and/or reflection of the rows and/or the columns.

%H S. N. Ethier, <a href="http://arxiv.org/abs/1301.2352">Counting toroidal binary arrays</a>, arXiv preprint arXiv:1301.2352, 2013 and <a href="https://cs.uwaterloo.ca/journals/JIS/VOL16/Ethier/ethier2.html">J. Int. Seq. 16 (2013) #13.4.7</a>.

%Y A column of A222188.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Feb 12 2013

%E More terms from _Michel Marcus_, Feb 13 2013