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 A060077 #6 Sep 10 2023 20:51:46 %S A060077 1,55,3486,281210,28862471,3706931865,584856590956,111432850130020, %T A060077 25255179275602941,6719606199432053675,2074965724098955112426, %U A060077 736196253336729035680830,297480985088238886530733411 %N A060077 Fifth column of triangle A060074. %C A060077 Also fifth diagonal of triangle A060058. %C A060077 a(n) is n-fold iterated sum of squares with last upper summation index 5 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 A060077 a(n) = A060074(n+4, 4) = A060058(4+n, n). %Y A060077 Cf. A060058, A060061, A060074. %K A060077 nonn,easy %O A060077 0,2 %A A060077 _Wolfdieter Lang_, Mar 16 2001