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 A213453 N1787 #24 Jan 25 2020 03:48:23 %S A213453 1,6,66,702,7350,76266,786858,8086074,82848522,846886962,8640964782 %N A213453 Self-avoiding walks on the f.c.c. lattice. %D A213453 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %H A213453 D. S. McKenzie and C. Domb, <a href="https://doi.org/10.1088/0370-1328/92/3/316">The second osmotic virial coefficient of athermal polymer solutions</a>, Proceedings of the Physical Society, 92 (1967) 632-649. %F A213453 Apparently a(n) = A001336(n-1)/2 for n > 1. - _Andrey Zabolotskiy_, Dec 29 2018 %Y A213453 Cf. A001336, A002902. %K A213453 nonn,walk,more %O A213453 1,2 %A A213453 _N. J. A. Sloane_, Jun 12 2012