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 A203682 v(n+1)/v(n), where v=A203681. 2
 3, 156, 142272, 2194403328, 557834881204224, 2303742029718154641408, 153403122389516451861994930176, 164074442468721024925743366747249967104, 2813282786110268238357922727341801514160674045952 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS See A093883 for a discussion and guide to related sequences. LINKS Table of n, a(n) for n=1..9. MATHEMATICA f[j_] := 2^(j - 1); z = 12; u[n_] := Product[f[j]^2 - f[j] f[k] + f[k]^2, {j, 1, k - 1}] v[n_] := Product[u[n], {k, 2, n}] Table[v[n], {n, 1, z}] (* A203681 *) Table[v[n + 1]/v[n], {n, 1, z}] (* A203682 *) CROSSREFS Sequence in context: A327058 A087306 A278877 * A316479 A139964 A048797 Adjacent sequences: A203679 A203680 A203681 * A203683 A203684 A203685 KEYWORD nonn AUTHOR Clark Kimberling, Jan 04 2012 STATUS approved

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Last modified February 23 18:28 EST 2024. Contains 370283 sequences. (Running on oeis4.)