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 A110328 #3 Mar 30 2012 18:59:09
%S A110328 1,3,15,109,1053,12711,184123,3111585,60096249,1305766603,31523994471,
%T A110328 837162204693,24253060182805,761176868685039,25727009276451603,
%U A110328 931657420717406281,35987519689305385713,1476986487871517622675
%N A110328 Row sums of a number triangle related to the Pell numbers.
%C A110328 Row sums of triangle A110327.
%F A110328 E.g.f.: exp(x)/(1-2x-x^2); a(n)=sum{k=0..n, n!*Pell(n-k+1)/k!}; a(n)=sum{k=0..n, binomial(n, k)*k!*Pell(k+1)}.
%Y A110328 Cf. A000129.
%K A110328 easy,nonn
%O A110328 0,2
%A A110328 _Paul Barry_, Jul 20 2005