

A156301


a(n) = ceiling( n * (log_3 2)) = ceiling(n * 0.6309297535714574371...).


3



0, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 7, 8, 9, 9, 10, 11, 11, 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18, 19, 19, 20, 21, 21, 22, 23, 23, 24, 24, 25, 26, 26, 27, 28, 28, 29, 30, 30, 31, 31, 32, 33, 33, 34, 35, 35, 36, 36, 37, 38, 38, 39, 40, 40, 41, 42, 42, 43, 43, 44, 45, 45, 46, 47
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OFFSET

0,3


LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000
Li anPing, A note on the counterfeit coins problem, Feb 7, 2009.


MAPLE

seq(ceil(n*log[3](2)), n=0..120) ; # R. J. Mathar, Mar 14 2009


MATHEMATICA

With[{c=Log[3, 2]}, Ceiling[c*Range[0, 80]]] (* Harvey P. Dale, Aug 07 2015 *)


PROG

(Haskell)
a156301 = ceiling . (* logBase 3 2) . fromIntegral
 Reinhard Zumkeller, Jul 03 2015


CROSSREFS

Cf. A020915, A102525.  R. J. Mathar, Feb 19 2009
Cf. A136409.
Sequence in context: A005379 A029922 A020915 * A195124 A032509 A004523
Adjacent sequences: A156298 A156299 A156300 * A156302 A156303 A156304


KEYWORD

easy,nonn


AUTHOR

Jonathan Vos Post, Feb 07 2009


EXTENSIONS

More terms from R. J. Mathar, Mar 14 2009
Edited by N. J. A. Sloane, May 23 2009 at the suggestion of Hagen von Eitzen


STATUS

approved



