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 A053552 #6 Mar 30 2012 16:48:45 %S A053552 1,-2,0,-32,-1000,-61104,-6622448,-1274984320,-444075170688, %T A053552 -286507347953920,-349824570713902592,-821921957328576534528, %U A053552 -3760909487461975276739584,-33794780371666462710538704896,-599695123654141294961479035617280 %N A053552 E.g.f. is obtained by reversion of e.g.f. for A053549. %D A053552 R. P. Stanley, Enumerative Combinatorics, Cambridge, Vol. 2, 1999; see Problem 5.20, G^<-1>(x). %H A053552 <a href="/index/Res#revert">Index entries for reversions of series</a> %p A053552 seriestoseries(G, 'revogf'); # where G is e.g.f. for A053549; i.e. use ordinary reversion on the e.g.f. and treat answer as another e.g.f. %K A053552 sign %O A053552 1,2 %A A053552 _N. J. A. Sloane_, Jan 16 2000