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 A055871 #4 Mar 31 2012 13:20:04 %S A055871 1,0,-1,-2,-4,0,44,288,1276,0,-96976,-1707552,-19298224,0,10054374704, %T A055871 465280599168,13714167096256,0,-48973290700730176, %U A055871 -5936600776414758912,-457851294761126415424,0,11206368290573330143917824,3556757207429750327041640448 %N A055871 Row sums of signed Fibonomial triangle A055870. %F A055871 a(n)= sum(A055870(n, m), m=0..n). %Y A055871 Cf. A010048, A055870, A056569 (row sums of unsigned Fibonomial triangle). %K A055871 sign,easy %O A055871 0,4 %A A055871 _Wolfdieter Lang_ Jul 10 2000