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A166472 2^F(n+2)*3^F(n+1)/12, where F(n) is the n-th Fibonacci number (A000045(n)). 1
1, 6, 72, 5184, 4478976, 278628139008, 14975624970497949696, 50071566192138943522512952098816, 8998235963747242817865410245394871488270255869919232 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

For m>1, A166469(A002110(m)*a(n))=F(m+n+1).

A166469(a(n))=F(n+3)-2=A001911(n).

LINKS

Table of n, a(n) for n=1..9.

FORMULA

a(n)=A166470(n+1)/12.

For n>1, a(n)=12*a(n-1)*a(n-2).

MATHEMATICA

Table[(2^Fibonacci[n + 2] * 3^Fibonacci[n + 1])/12, {n, 1, 10}] (* G. C. Greubel, May 15 2016 *)

CROSSREFS

Subsequence of A003586, A025487.

Sequence in context: A279234 A132878 A006585 * A182917 A328814 A203433

Adjacent sequences:  A166469 A166470 A166471 * A166473 A166474 A166475

KEYWORD

nonn

AUTHOR

Matthew Vandermast, Nov 05 2009

STATUS

approved

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Last modified March 2 19:18 EST 2021. Contains 341756 sequences. (Running on oeis4.)