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 A203515 v(n+1)/v(n), where v=A203514. 2
 13, 1519, 490827, 310285521, 323965491213, 505036803636351, 1099306007175141675, 3185114376029382371169, 11851908573273735083748813, 55083172732097477388836049999, 312715835695576039538837531922507 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS See A093883 for a discussion and guide to related sequences. LINKS MATHEMATICA f[j_] := 2 j - 1; z = 12; v[n_] := Product[Product[f[j]^2 + f[j] f[k] + f[k]^2, {j, 1, k - 1}], {k, 2, n}] Table[v[n], {n, 1, z}]          (* A203514 *) Table[v[n + 1]/v[n], {n, 1, z}] (* A203515 *) CROSSREFS Sequence in context: A185073 A185193 A066457 * A166929 A079917 A028450 Adjacent sequences:  A203512 A203513 A203514 * A203516 A203517 A203518 KEYWORD nonn AUTHOR Clark Kimberling, Jan 04 2012 STATUS approved

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Last modified January 23 19:12 EST 2020. Contains 331175 sequences. (Running on oeis4.)