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 A294293 #9 Oct 27 2017 09:56:38 %S A294293 1,-1,1,-7,49,-301,3001,-26251,280897,-4040569,52124401,-749335951, %T A294293 12646748401,-215856019237,4053285942889,-82462867482451, %U A294293 1728838444704001,-38850070313151601,922947645744036577,-22864122050534606359,599150979583749111601 %N A294293 E.g.f.: exp(1/((1+x)*(1+x^2)*(1+x^3)*(1+x^4)*(1+x^5)) - 1). %H A294293 Seiichi Manyama, <a href="/A294293/b294293.txt">Table of n, a(n) for n = 0..438</a> %o A294293 (PARI) N=66; x='x+O('x^N); Vec(serlaplace(exp(1/((1+x)*(1+x^2)*(1+x^3)*(1+x^4)*(1+x^5))-1))) %Y A294293 Column k=5 of A294289. %K A294293 sign %O A294293 0,4 %A A294293 _Seiichi Manyama_, Oct 27 2017