A182642 Subsequence of A014217 (n=2,3,5,6,8,9,11,12,...).

2, 4, 11, 17, 46, 76, 199, 321, 842, 1364, 3571, 5777, 15126, 24476, 64079, 103681, 271442, 439204, 1149851, 1860497, 4870846, 7881196, 20633239, 33385282, 87403803, 141422324, 370248451, 599074578

Offset

1,1

Links

Table of n, a(n) for n=1..28.

Formula

a(n)=floor(r^m(n)), where r=(1+sqrt(5))/2 and m(n)

runs through the integers 3k+2 and 3k+3 for k>=0.

Example

a(1)=floor(r^2)=2, a(2)=floor(r^3)=4, a(3)=floor(r^5)=11.

Crossrefs

Cf. A014217, A182643.

Sequence in context: A283389 A283406 A283357 * A218911 A056393 A319417

Adjacent sequences: A182639 A182640 A182641 * A182643 A182644 A182645

Keyword

nonn

Author

Clark Kimberling, Nov 24 2010

Status

approved