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A089126
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a(n+2) = F(n+1)*a(n+1) + F(n)*a(n) where F(n) = Fibonacci number (A000045), a(0) = a(1) = 1.
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1
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1, 1, 1, 2, 5, 19, 110, 975, 13555, 297330, 10393875, 581772345, 52349401830, 7590091602225, 1776029657181945, 671331672100911690, 410181883162313724165, 405259031001185201881755
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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FORMULA
| Floor(a(n)/a(n-1)) = F(n-1) where F(n) = Fibonacci number - Gerald McGarvey (Gerald.McGarvey(AT)comcast.net), Jul 17 2004
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MATHEMATICA
| y[n_] := y[n] = Fibonacci[n - 1]y[n - 1] + Fibonacci[n - 2]y[n - 2] y[0] = 1 y[1] = 1
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CROSSREFS
| Sequence in context: A009311 A107882 A192445 * A113346 A198945 A054926
Adjacent sequences: A089123 A089124 A089125 * A089127 A089128 A089129
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KEYWORD
| nonn
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AUTHOR
| Emanuele Munarini (munarini(AT)mate.polimi.it), Dec 05 2003
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