A203708 - OEIS

%I #7 Jan 09 2013 03:49:38

%S 13,986,227476,403325000,377678555920,1740121478145440,

%T 3548967435637000000,30329075863614521552000,

%U 1000883333324929677220000000,5056913952254846124761000000000,240257191158612376782675694149760000

%N v(n+1)/v(n), where v=A203707.

%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[k]^2, {j, 1, k - 1}]

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

%t Table[v[n], {n, 1, z}]          (* A203707 *)

%t Table[v[n + 1]/v[n], {n, 1, z}] (* A203708 *)

%K nonn

%O 1,1

%A _Clark Kimberling_, Jan 05 2012