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A220844 Sum of inclusive heights of complete 4-ary trees on n nodes. 0
1, 3, 4, 5, 6, 9, 10, 11, 12, 14, 15, 16, 17, 19, 20, 21, 22, 24, 25, 26, 27, 31, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 49, 52, 53, 54, 55, 57, 58, 59, 60, 62, 63, 64, 65, 67, 68, 69, 70, 73, 74, 75, 76, 78, 79, 80, 81, 83, 84, 85, 86, 88, 89, 90, 91, 94, 95, 96, 97, 99, 100, 101, 102, 104, 105, 106, 107, 109, 110, 111, 112, 117, 118, 119, 120, 122, 123, 124, 125, 127, 128, 129, 130, 132, 133, 134 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

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: A212640 A333694 A338321 * A047250 A081944 A129948

Adjacent sequences:  A220841 A220842 A220843 * A220845 A220846 A220847

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 24 2012

STATUS

approved

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Last modified July 25 23:39 EDT 2021. Contains 346294 sequences. (Running on oeis4.)