A203704 - OEIS

%I #8 Jan 14 2013 04:53:34

%S 19,1911,576937,1189591767,1496438765409,8435413586003607,

%T 23479548077360291553,250967765143098771948999,

%U 9627548485949418328668911673,67370251155902517367181687865633,3815405119576878725560291907907477303

%N v(n+1)/v(n), where v=A203703.

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

%t f[j_] := Prime[j]; z = 11;

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

%t v[n_] := Product[u, {k, 2, n}]

%t Table[v[n], {n, 1, z}]          (* A203703 *)

%t Table[v[n + 1]/v[n], {n, 1, z}] (* A203704 *)

%K nonn

%O 1,1

%A _Clark Kimberling_, Jan 05 2012