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A203698 v(n+1)/v(n), where v=A203697. 2
7, 247, 59241, 76729716, 689752947387, 39249957731901417, 15252723950786921574864, 39679788989582545617673116075, 704312289520934881327209555287279697, 85070061037070760350065353912376376614050816 (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..10.

MATHEMATICA

f[j_] := Fibonacci[j + 1]; z = 11;

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}]          (* A203697 *)

Table[v[n + 1]/v[n], {n, 1, z}] (* A203698 *)

CROSSREFS

Sequence in context: A223630 A203158 A227414 * A229482 A193371 A142805

Adjacent sequences:  A203695 A203696 A203697 * A203699 A203700 A203701

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 04 2012

STATUS

approved

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Last modified February 17 17:27 EST 2019. Contains 320222 sequences. (Running on oeis4.)