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 A062507 #4 Mar 30 2012 18:51:34 %S A062507 0,1,0,0,1,0,2,1,1,0,4,3,2,1,0,10,7,5,3,1,0,24,17,12,8,4,1,0,58,41,29, %T A062507 20,12,5,1,0,140,99,70,49,32,17,6,1,0,338,239,169,119,81,49,23,7,1,0, %U A062507 816,577,408,288,200,130,72,30,8,1,0,1970,1393,985,696,488,330,202,102 %N A062507 Table by antidiagonals related to partial sums and differences of Pell numbers (A000129). %F A062507 T(n, k) =T(n, k-1)+T(n-1, k) =2T(n, k-1)+T(n, k-2)+C(n+k-3, k) for n>2. %e A062507 Rows start (0,1,0,2,4,10,...), (0,1,1,3,7,17,...), (0,1,2,5,12,29,...) etc. %Y A062507 Rows are effectively A052542, A001333, A000129, A048739, A048776. Columns are effectively A000004, A000012, A001477, A022856. %K A062507 nonn,tabl %O A062507 0,7 %A A062507 _Henry Bottomley_, Jul 09 2001