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A203586 v(n+1)/v(n), where v=A203585. 2

%I

%S 13,500,40426,5709600,1256804900,399383584000,173474742285000,

%T 98872482630272000,71645799536067250000,64368175738481971200000,

%U 70249051303937073666500000,91567621291850074309120000000

%N v(n+1)/v(n), where v=A203585.

%C See A093883 for a discussion and guide to related sequences.

%t f[j_] := j + 1; z = 12;

%t v[n_] := Product[Product[f[j]^2 + f[k]^2, {j, 1, k - 1}], {k, 2, n}]

%t Table[v[n], {n, 1, z}] (* A203585 *)

%t Table[v[n + 1]/v[n], {n, 1, z}] (* A203586 *)

%K nonn

%O 1,1

%A _Clark Kimberling_, Jan 04 2012

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Last modified August 3 17:21 EDT 2021. Contains 346439 sequences. (Running on oeis4.)