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A017950 Powers of sqrt(15) rounded to nearest integer. 1
1, 4, 15, 58, 225, 871, 3375, 13071, 50625, 196070, 759375, 2941047, 11390625, 44115701, 170859375, 661735514, 2562890625, 9926032709, 38443359375, 148890490632, 576650390625, 2233357359475, 8649755859375 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

MATHEMATICA

Floor[(Sqrt[15]^Range[0, 40]+1/2)] (* Vincenzo Librandi, Nov 19 2011 *)

PROG

(PARI) a(n)=round(sqrt(15)^n) \\ Charles R Greathouse IV, Nov 18 2011

(MAGMA) [Round(Sqrt(15)^n): n in [0..40]]; // Vincenzo Librandi, Nov 19 2011

CROSSREFS

Sequence in context: A109642 A307570 A164589 * A003126 A160156 A102052

Adjacent sequences:  A017947 A017948 A017949 * A017951 A017952 A017953

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified October 16 06:14 EDT 2021. Contains 348040 sequences. (Running on oeis4.)