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 A001397 M3602 N1461 #24 Dec 23 2021 23:03:34 %S A001397 4,24,188,1368,10572,81376,637148,5007560,39638728,314980912, %T A001397 2513038452,20109809792,161359033480,1297640775272,10456351280264 %N A001397 Number of 2n-step self-avoiding walks on diamond lattice ending at point with x = 2. %D A001397 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A001397 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A001397 J. L. Martin, <a href="http://dx.doi.org/10.1017/S0305004100036240">The exact enumeration of self-avoiding walks on a lattice</a>, Proc. Camb. Phil. Soc., 58 (1962), 92-101. %Y A001397 Cf. A001394, A001395, A001396, A001398, A227715, A227716. %K A001397 nonn,walk,more %O A001397 1,1 %A A001397 _N. J. A. Sloane_ %E A001397 Edited and extended by _Joseph Myers_, Jul 21 2013 %E A001397 a(12)-a(14) from _Sean A. Irvine_, Nov 16 2017 %E A001397 a(15) from _Bert Dobbelaere_, Jan 12 2019