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