A134915 a(0) = 1, a(n) = floor(a(n - 1)*Pi).

1, 3, 9, 28, 87, 273, 857, 2692, 8457, 26568, 83465, 262213, 823766, 2587937, 8130243, 25541911, 80242279, 252088554, 791959549, 2488014301, 7816327450, 24555716894, 77144059797, 242355211526, 761381352089, 2391950062303, 7514532743484, 23607600862089, 74165465437218

Offset: 0

Author

Rolf Pleisch, Jan 29 2008

Keywords

• nonn

Comments

Coincides with first 11 terms of A085839.

Crossrefs

Cf. A085839, A001672.

Essentially the same as A115239.

Programs

Mathematica

NestList[Floor[# \[Pi]]&, 1, 30]  (* Harvey P. Dale, Mar 28 2011 *)

Formula

a(n) = A115239(n), n > 0. [From R. J. Mathar, Oct 27 2008]