This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A222191 #11 Jan 20 2018 16:09:55 %S A222191 8,78,708,14676,340880,8999762,245619576,6873769668,195476237384, %T A222191 5629567649856,163767575198904,4803842349528720,141898045773925232, %U A222191 4216398765923837382,125929773586625359472,3777893192033792518716,113781253647861573211712 %N A222191 Number of toroidal n X 5 binary arrays, allowing rotation and/or reflection of the rows and/or the columns. %H A222191 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 A222191 A column of A222188. %K A222191 nonn %O A222191 1,1 %A A222191 _N. J. A. Sloane_, Feb 12 2013 %E A222191 More terms from _Michel Marcus_, Feb 13 2013