A220854 Sum of exclusive heights of size-balanced 3-ary trees on n nodes.

0, 1, 1, 1, 3, 4, 5, 5, 5, 5, 5, 5, 5, 8, 10, 12, 13, 14, 15, 16, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 22, 25, 28, 30, 32, 34, 36, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58

Offset

1,5

Links

Table of n, a(n) for n=1..100.

Sung-Hyuk Cha, On Complete and Size Balanced k-ary Tree Integer Sequences, International Journal of Applied Mathematics and Informatics, Issue 2, Volume 6, 2012, pp. 67-75.

Crossrefs

Sequence in context: A161386 A085600 A128999 * A122816 A064007 A358127

Adjacent sequences: A220851 A220852 A220853 * A220855 A220856 A220857

Keyword

nonn

Author

N. J. A. Sloane, Dec 24 2012

Status

approved