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 A293179 #9 Oct 26 2017 06:04:40 %S A293179 2,17,4,159,8,1129,16,7151 %N A293179 Number of linearly chained n-tuples of 2 X 2 alternating sign matrices. %H A293179 Heuer, Dylan, Chelsey Morrow, Ben Noteboom, Sara Solhjem, Jessica Striker, and Corey Vorland. "Chained permutations and alternating sign matrices—Inspired by three-person chess." Discrete Mathematics 340, no. 12 (2017): 2732-2752. Also <a href="http://arxiv.org/abs/1611.03387">arXiv:1611.03387</a>. %Y A293179 Cf. A005130, A293178, A293180. %K A293179 nonn,more %O A293179 1,1 %A A293179 _N. J. A. Sloane_, Oct 19 2017