A131612 (Fibonacci(n)^(n+1)-1)/(Fibonacci(n)-1).

1, 2, 3, 15, 121, 3906, 299593, 67977560, 39714002329, 62556901638175, 257985813269495081, 2806709131423433412540, 80052769211806164721787281, 5990939163682951316587217125254, 1174714712853607653027182667701045767, 603476089599958368340121395090311986863711

Offset

0,2

Comments

Row sums of A131606 and A131609.

Links

Table of n, a(n) for n=0..15.

Mathematica

f[n_]:=Module[{fn=Fibonacci[n]}, (fn^(n+1)-1)/(fn-1)]; Join[{1, 2, 3}, f/@Range[3, 20]]  (* Harvey P. Dale, Mar 01 2011 *)

Crossrefs

Sequence in context: A362999 A165657 A091835 * A297421 A180723 A162102

Adjacent sequences: A131609 A131610 A131611 * A131613 A131614 A131615

Keyword

nonn

Author

Roger L. Bagula and Gary W. Adamson, May 27 2008

Extensions

Edited by N. J. A. Sloane, May 28 2008

Status

approved