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A060078
Sixth column of triangle A060074.
0
1, 91, 8526, 948002, 127838711, 20829905733, 4059150905356, 935210483855284, 251931148208847261, 78543629143430050655, 28079156490294534487226, 11415592075705105510977846, 5238681589930616835789832051
OFFSET
0,2
COMMENTS
Also sixth diagonal of triangle A060058.
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.
CROSSREFS
Sequence in context: A210461 A022253 A172174 * A202564 A006244 A054216
KEYWORD
nonn
AUTHOR
Wolfdieter Lang, Mar 16 2001
STATUS
approved