1,1
See A093883 for a discussion and guide to related sequences.
Table of n, a(n) for n=1..10.
f[j_] := j (j + 1)/2; z = 11;
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}] (* A203695 *)
Table[v[n + 1]/v[n], {n, 1, z}] (* A203696 *)
Sequence in context: A160236 A204466 A117523 * A203530 A232594 A194793
Adjacent sequences: A203693 A203694 A203695 * A203697 A203698 A203699
nonn
Clark Kimberling, Jan 04 2012
approved
