A017942 - OEIS

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A017942

Powers of sqrt(12) rounded up.

1

1, 4, 12, 42, 144, 499, 1728, 5986, 20736, 71832, 248832, 861980, 2985984, 10343752, 35831808, 124125024, 429981696, 1489500288, 5159780352, 17874003452, 61917364224, 214488041414, 743008370688

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..900

MATHEMATICA

Ceiling[(Sqrt[12])^Range[0, 40]] (* Vincenzo Librandi, Nov 21 2011 *)

PROG

(Magma) [Ceiling(Sqrt(12^n)): n in [0..30]]; // Vincenzo Librandi, Nov 21 2011

CROSSREFS

Sequence in context: A343517 A308371 A052303 * A149344 A178078 A135489

Adjacent sequences: A017939 A017940 A017941 * A017943 A017944 A017945

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved