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 A055918 #12 Mar 10 2020 13:34:32 %S A055918 1,8,36,156,524,1552,4259,10394,24183,51875,106494,206745,384905, %T A055918 687199,1183788,1963561,3173730,4927653,7548433,11034284,16135051, %U A055918 22312164,31309061,41115663,55583921,69539866,90846746,108550608,137370735 %N A055918 Coefficients of a polynomial used in calculation of A055915. %C A055918 Last term has index 80. %H A055918 Georg Fischer, <a href="/A055918/b055918.txt">Table of n, a(n) for n = 0..80</a> %H A055918 A. J. Guttmann and A. R. Conway, <a href="https://researchers.ms.unimelb.edu.au/~guttmann@unimelb/articles/hexfinal.pdf">Hexagonal lattice directed site animals</a>, Statistical Physics on the Eve of the Twenty-First Century, ed. M. T. Batchelor, World Scientific, 1999 (t_9,m for hexagonal lattices, Table 1). %K A055918 nonn,fini,full %O A055918 0,2 %A A055918 _Christian G. Bower_, Jun 22 2000 %E A055918 Corrected by _R. J. Mathar_, Oct 31 2006