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 A007282 M3489 #15 Nov 19 2022 01:10:34 %S A007282 1,1,1,4,14,74,434,2876,19848,143306,1062149,8058223,62259820, %T A007282 488630360,3886211100,31267852668 %N A007282 Number of hexaflexagons with 3n triangles that can be folded from a straight strip of paper. %D A007282 M. Kosters, A theory of hexaflexagons, Nieuw Archief Wisk., 17 (1999), 349-362. %D A007282 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %Y A007282 Cf. A001683, A000207. %K A007282 nonn,more,nice %O A007282 1,4 %A A007282 _N. J. A. Sloane_, frb6006(AT)cs.rit.edu (Frank R. Bernhart) %E A007282 More terms from Mike Godfrey (m.godfrey(AT)umist.ac.uk), Apr 02 2002