A118088 a(0) = 0, a(n) = (1+2*0^(n mod 3))*a(floor(n/3)) + n mod 3.

0, 1, 2, 3, 2, 3, 6, 3, 4, 9, 4, 5, 6, 3, 4, 9, 4, 5, 18, 7, 8, 9, 4, 5, 12, 5, 6, 27, 10, 11, 12, 5, 6, 15, 6, 7, 18, 7, 8, 9, 4, 5, 12, 5, 6, 27, 10, 11, 12, 5, 6, 15, 6, 7, 54, 19, 20, 21, 8, 9, 24, 9, 10, 27, 10, 11, 12, 5, 6, 15, 6, 7, 36, 13, 14, 15, 6, 7, 18, 7, 8, 81, 28, 29, 30, 11, 12

Offset

0,3

Comments

a(0) = 0, a(3*n) = 3*a(n), a(3*n+i) = a(n)+i with 1<=i<=2;

A118089(n) = Min{m: a(m) = n}.

Links

Table of n, a(n) for n=0..86.

Crossrefs

Cf. A087808.

Sequence in context: A278910 A337982 A235669 * A298211 A088212 A085208

Adjacent sequences: A118085 A118086 A118087 * A118089 A118090 A118091

Keyword

nonn

Author

Reinhard Zumkeller, Apr 12 2006

Status

approved