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 A009232 #12 Apr 01 2017 11:59:32 %S A009232 1,2,12,112,1232,10112,-187968,-17297408,-743941888,-15034114048, %T A009232 1067281001472,164133555208192,11143403147251712,55023491428646912, %U A009232 -105243085074533203968,-16342277967934744690688 %N A009232 Expansion of exp(sinh(x)*sin(x)). %t A009232 Exp[ Sinh[ x ]*Sin[ x ] ] (* Even Part *) %K A009232 sign %O A009232 0,2 %A A009232 _R. H. Hardin_ %E A009232 Extended with signs by _Olivier Gérard_, Mar 15 1997