%I #2 Mar 31 2012 13:20:05
%S 1,91,8526,948002,127838711,20829905733,4059150905356,935210483855284,
%T 251931148208847261,78543629143430050655,28079156490294534487226,
%U 11415592075705105510977846,5238681589930616835789832051
%N Sixth column of triangle A060074.
%C Also sixth diagonal of triangle A060058.
%C a(n) is n-fold iterated sum of squares with last upper summation index 6 and other upper summation indices j[k]+1, k=2,...,n. See Comments A060061 for the threefold iteration with last upper summation index n.
%K nonn
%O 0,2
%A _Wolfdieter Lang_, Mar 16 2001