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A203588 a(n) = v(n+1)/v(n), where v=A203587. 2

%I #11 Nov 26 2021 06:38:08

%S 7,399,62049,18796113,9385475463,6989994912159,7264350232509825,

%T 10045045412133360993,17833797760578200512839,

%U 39538255667229582221666799,107060230015204789813170342753,347683557620810765411565611000625

%N a(n) = v(n+1)/v(n), where v=A203587.

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

%t f[j_] := 2 j - 1; z = 12;

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

%t {j, 1, k - 1}], {k, 2, n}]

%t Table[v[n], {n, 1, z}] (* A203587 *)

%t Table[v[n + 1]/v[n], {n, 1, z}] (* A203588 *)

%Y Cf. A093883, A203587, A203588.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Jan 04 2012

%E Definition corrected by _Georg Fischer_, Nov 26 2021

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)