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 A203701 Vandermonde sequence using x^2 + y^2 applied to the Fibonacci numbers (1,2,3,5,...F(n+1)). 3
 1, 5, 650, 16663400, 478518525316000, 113232587986394983843360000, 1438710315085989348124673236473864000000000, 6858373830854236318613852813305507279474257818061600000000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS See A093883 for a discussion and guide to related sequences. LINKS Table of n, a(n) for n=1..8. MATHEMATICA f[j_] := Fibonacci[j + 1]; z = 11; u[n_] := Product[f[j]^2 + f[k]^2, {j, 1, k - 1}] v[n_] := Product[u[n], {k, 2, n}] Table[v[n], {n, 1, z}] (* A203701 *) Table[v[n + 1]/v[n], {n, 1, z}] (* A203702 *) CROSSREFS Sequence in context: A068421 A142535 A203475 * A117709 A185820 A332165 Adjacent sequences: A203698 A203699 A203700 * A203702 A203703 A203704 KEYWORD nonn AUTHOR Clark Kimberling, Jan 04 2012 STATUS approved

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Last modified June 22 09:29 EDT 2024. Contains 373568 sequences. (Running on oeis4.)