A017973 Powers of sqrt(23) rounded down.

1, 4, 23, 110, 529, 2536, 12167, 58350, 279841, 1342070, 6436343, 30867616, 148035889, 709955183, 3404825447, 16328969210, 78310985281, 375566291832, 1801152661463, 8638024712142, 41426511213649

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..700

Formula

a(n) = floor(sqrt(23^n)). - Vincenzo Librandi, Jun 24 2011

Mathematica

Floor[(Sqrt[23])^Range[0, 30]] (* Harvey P. Dale, Jul 22 2021 *)

Prog

(Magma) [Floor(Sqrt(23^n)): n in [0..30]]; // Vincenzo Librandi, Jun 24 2011
(PARI) a(n)=sqrtint(23^n) \\ Charles R Greathouse IV, Nov 18 2011

Crossrefs

Cf. A010479 (sqrt(23)).

Sequence in context: A321614 A082970 A197868 * A306669 A124507 A239813

Adjacent sequences: A017970 A017971 A017972 * A017974 A017975 A017976

Keyword

nonn

Author

N. J. A. Sloane

Status

approved