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1,1
See A093883 for a discussion and guide to related sequences.
Table of n, a(n) for n=1..10.
f[j_] := j^2; z = 12;
u[n_] := Product[f[j]^2 + f[k]^2, {j, 1, k - 1}]
v[n_] := Product[u[n], {k, 2, n}]
Table[v[n], {n, 1, z}] (* A203677 *)
Table[v[n + 1]/v[n], {n, 1, z}] (* A203678 *)
Sequence in context: A198533 A192766 A166326 * A257044 A114924 A191964
Adjacent sequences: A203675 A203676 A203677 * A203679 A203680 A203681
nonn
Clark Kimberling, Jan 04 2012
approved