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A124904 a(n) = least integer j>=0 such that n = floor[(3^j)/(2^k)] for some integer k>=0. 2

%I #8 Aug 24 2019 13:48:23

%S 0,2,1,2,4,3,5,7,2,4,6,8,3,10,5,12,7,14,9,4,11,6,18,13,8,32,3,10,22,5,

%T 29,12,36,7,31,14,38,9,33,4,16,40,11,35,6,18,42,13,25,49,8,32,44,15,

%U 27,39,10,22,34,5,17,29,41,12,24,36,48,7,19,31,43,14,26,38,91,9,21,33,86

%N a(n) = least integer j>=0 such that n = floor[(3^j)/(2^k)] for some integer k>=0.

%C The k-sequence is A124912.

%H Rémy Sigrist, <a href="/A124904/b124904.txt">Table of n, a(n) for n = 1..8192</a>

%H Rémy Sigrist, <a href="/A124904/a124904.png">Logarithmic scatterplot of the first 2^13 terms</a>

%H Rémy Sigrist, <a href="/A124904/a124904.gp.txt">PARI program for A124904</a>

%e 1=[3^0/2^0], 2=[3^2/2^2], 3=[3^1/2^0], 4=[3^2/2^1],...,

%e so j-sequence = (0,2,1,2,...); k-sequence = (0,2,0,1,...).

%o (PARI) See Links section.

%Y Cf. A124912.

%K nonn

%O 1,2

%A _Clark Kimberling_, Nov 12 2006

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