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 A060076 #3 Mar 31 2012 13:20:05 %S A060076 1,30,1211,68060,5162421,510964090,64108947631,9954077496120, %T A060076 1874917179220841,421327494210872150,111374995513203846051, %U A060076 34217341079365673500180,12091183195611248756287261 %N A060076 Fourth column of triangle A060074. %C A060076 Also fourth diagonal of triangle A060058. %C A060076 a(n) is n-fold iterated sum of squares with last upper summation index 4 and other upper summation indices j[k]+1, k=2,...,n. See Comments A060061 for the threefold iteration with last upper summation index n. %F A060076 a(n)=A060074(n+3, 3)= A060058(3+n, n). %K A060076 nonn,easy %O A060076 0,2 %A A060076 _Wolfdieter Lang_, Mar 16 2001