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 A003496 M4127 #18 Oct 21 2023 23:47:59 %S A003496 1,6,18,132,810,5724,42156,323352,2550042,20559660,168680196 %N A003496 High temperature series for spherical model internal energy on 3-dimensional simple cubic lattice. %D A003496 G. S. Joyce, Critical properties of the spherical model, in C. Domb and M. S. Green, Phase Transitions and Critical Phenomena, Ac. Press 1972, Vol. 2; see especially pp. 404, 425. %D A003496 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %K A003496 nonn,more %O A003496 0,2 %A A003496 _N. J. A. Sloane_ %E A003496 Better description from _Steven Finch_