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A014336 Three-fold exponential convolution of Fibonacci numbers with themselves. +0
2
0, 0, 0, 6, 36, 210, 1080, 5460, 26964, 132294, 645480, 3142590, 15277680, 74222616, 360445176, 1750067430, 8496115740, 41243946330, 200209950504, 971859585804, 4717557894060, 22899644483430, 111157568501760 (list; graph; listen)
OFFSET

0,4

FORMULA

(1/5)[3^n*Fibonacci(n) - 3*Fibonacci(2n)]. - R. Stephan, May 14 2004

CROSSREFS

Cf. A000045.

Sequence in context: A006812 A111989 A064238 this_sequence A027910 A075848 A096979

Adjacent sequences: A014333 A014334 A014335 this_sequence A014337 A014338 A014339

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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