A124905 a(n) = least integer j>=0 such that n=floor((3^j)/(4^k)) for some integer k>=0.

0, 2, 1, 9, 4, 3, 17, 7, 2, 11, 6, 20, 15, 10, 5, 24, 19, 14, 9, 4, 23, 47, 18, 13, 8, 32, 3, 51, 22, 17, 41, 12, 36, 7, 31, 26, 79, 21, 74, 45, 16, 40, 11, 35, 6, 30, 136, 54, 25, 49, 20, 73, 44, 15, 174, 39, 10, 169, 34, 5, 111, 29, 294, 53, 24, 130, 48, 260, 19, 284, 43, 14, 67

Offset

1,2

Comments

The k-sequence is A124913.

Links

Table of n, a(n) for n=1..73.

Example

1=floor(3^0/4^0), 2=floor(3^2/4^1), 3=floor(3^1/4^0), 4=floor(3^9/4^6),...,
so j-sequence=(0,2,1,9,...); k-sequence=(0,1,0,6,...).

Crossrefs

Cf. A124913.

Sequence in context: A188108 A166890 A197411 * A293417 A295737 A021086

Adjacent sequences: A124902 A124903 A124904 * A124906 A124907 A124908

Keyword

nonn

Author

Clark Kimberling, Nov 12 2006

Status

approved