A017946 Powers of sqrt(14) rounded down.

1, 3, 14, 52, 196, 733, 2744, 10267, 38416, 143739, 537824, 2012353, 7529536, 28172943, 105413504, 394421215, 1475789056, 5521897022, 20661046784, 77306558317, 289254654976, 1082291816449, 4049565169664

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..800

Formula

a(n) = floor(sqrt(14^n)). - Vincenzo Librandi, Jun 24 2011

Mathematica

Floor[(Sqrt[14])^Range[0, 30]] (* Harvey P. Dale, Feb 14 2018 *)

Prog

(Magma) [Floor(Sqrt(14^n)): n in [0..30]]; // Vincenzo Librandi, Jun 24 2011
(PARI) a(n)=sqrtint(14^n) \\ Charles R Greathouse IV, Nov 18 2011

Crossrefs

Cf. A010471 (sqrt(14)).

Sequence in context: A238226 A083874 A105331 * A083424 A099487 A179610

Adjacent sequences: A017943 A017944 A017945 * A017947 A017948 A017949

Keyword

nonn

Author

N. J. A. Sloane

Status

approved