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 A058804 #3 Mar 30 2012 17:37:12 %S A058804 1,1,1,0,3,28,485,11886,396277,17214856,944152281,63752343130, %T A058804 5192082859601,501340949329980,56567812054113373,7366464172601396422, %U A058804 1095342925750005427965,184246192159690980312976 %N A058804 Number of labeled vertically indecomposable lattices with a fixed bottom. %F A058804 E.g.f. of a(n+1): A(x)=(B(x)-1)/B(x) where B(x) is e.g.f. of A058164(n+1). %Y A058804 a(n)=A058803(n)/n=A058805(n)*(n-1). %K A058804 nonn,hard %O A058804 0,5 %A A058804 _Christian G. Bower_, Dec 28 2000