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A203707 Vandermonde sequence using x^2 + y^2 applied to the first n primes. 3

%I #7 Jan 14 2013 04:39:35

%S 1,13,12818,2915787368,1176009940198600000,

%T 444153735961772806005712000000,

%U 772881455545619566045147078787806753280000000,2742931117339129483975618385974064131651632338639360000000000000

%N Vandermonde sequence using x^2 + y^2 applied to the first n primes.

%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 1,2

%A _Clark Kimberling_, Jan 05 2012

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)