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 A125863 #3 Mar 30 2012 18:37:02 %S A125863 1,4,22,178,2251,46663,1640572,100152049,10794383587,2079805452133, %T A125863 723492192295786,458149292979837523,531871667833026397222, %U A125863 1138955362720160687114704,4523369812874327770490887837 %N A125863 Column 3 of table A125860; also equals row sums of matrix power A097712^3. %C A125863 Equals column 0 of matrix power A097712^4, where triangle A097712 satisfies recurrence: A097712(n,k) = A097712(n-1,k) + [A097712^2](n-1,k-1). %Y A125863 Cf. A125860; A097712; other columns: A016121, A125862, A125864, A125865; A125861 (diagonal), A125859 (antidiagonal sums). %K A125863 nonn %O A125863 0,2 %A A125863 _Paul D. Hanna_, Dec 13 2006