A017938 Powers of sqrt(11) rounded to nearest integer.

1, 3, 11, 36, 121, 401, 1331, 4414, 14641, 48559, 161051, 534146, 1771561, 5875603, 19487171, 64631634, 214358881, 710947979, 2357947691, 7820427766, 25937424601, 86024705430, 285311670611

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Mathematica

Floor[(Sqrt[11]^Range[0, 40]+1/2)] (* Vincenzo Librandi, Nov 19 2011 *)

Prog

(PARI) a(n)=round(sqrt(11)^n) \\ Charles R Greathouse IV, Nov 18 2011
(Magma) [Round(Sqrt(11)^n): n in [0..40]]; // Vincenzo Librandi, Nov 19 2011

Crossrefs

Sequence in context: A291413 A347829 A017937 * A333760 A100068 A260745

Adjacent sequences: A017935 A017936 A017937 * A017939 A017940 A017941

Keyword

nonn

Author

N. J. A. Sloane

Status

approved