A017962 Powers of sqrt(19) rounded to nearest integer.

1, 4, 19, 83, 361, 1574, 6859, 29898, 130321, 568056, 2476099, 10793065, 47045881, 205068241, 893871739, 3896296579, 16983563041, 74029634997, 322687697779, 1406563064942, 6131066257801, 26724698233907

Offset

0,2

Links

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

Mathematica

Floor[(Sqrt[19])^Range[0, 30]+1/2] (* Harvey P. Dale, Oct 11 2011 *)

Prog

(PARI) a(n)=round(sqrt(19)^n) \\ Charles R Greathouse IV, Nov 18 2011
(Magma) [Round(Sqrt(19)^n): n in [0..30]]; // Vincenzo Librandi, Nov 20 2011

Crossrefs

Sequence in context: A050914 A017961 A180146 * A260746 A290667 A357572

Adjacent sequences: A017959 A017960 A017961 * A017963 A017964 A017965

Keyword

nonn

Author

N. J. A. Sloane

Status

approved