A017960 Powers of sqrt(18) rounded up.

1, 5, 18, 77, 324, 1375, 5832, 24744, 104976, 445376, 1889568, 8016759, 34012224, 144301646, 612220032, 2597429618, 11019960576, 46753733111, 198359290368, 841567195984, 3570467226624, 15148209527701

Offset

0,2

Links

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

Mathematica

Ceiling[(Sqrt[18])^Range[0, 30]]  (* Harvey P. Dale, Apr 23 2011 *)

Prog

(Magma) [Ceiling(Sqrt(18^n)): n in [0..30]]; // Vincenzo Librandi, Nov 21 2011

Crossrefs

Sequence in context: A242054 A027134 A227451 * A162814 A082034 A259340

Adjacent sequences: A017957 A017958 A017959 * A017961 A017962 A017963

Keyword

nonn

Author

N. J. A. Sloane

Status

approved