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A036644 Number of 6-ary rooted trees with n nodes and height exactly 6. 0
0, 0, 0, 0, 0, 0, 1, 5, 19, 61, 180, 498, 1318, 3376, 8433, 20659, 49802, 118506, 278857, 650072, 1503003, 3450424, 7870894, 17854238, 40295522, 90531067, 202552028, 451479327, 1002843896, 2220473234, 4902040602, 10792481396 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,8
LINKS
E. M. Rains and N. J. A. Sloane, On Cayley's Enumeration of Alkanes (or 4-Valent Trees), J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.
CROSSREFS
Sequence in context: A338229 A102841 A036637 * A000342 A189427 A355492
KEYWORD
nonn,fini
AUTHOR
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)