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A036608 Triangle of coefficients of generating function of 6-ary rooted trees of height at most n. 0
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 5, 7, 11, 14, 19, 24, 31, 37, 46, 52, 61, 68, 76, 81, 88, 90, 94, 94, 94, 90, 88, 81, 76, 68, 61, 52, 46, 37, 31, 24, 19, 14, 11, 7, 5, 3, 2, 1, 1, 1, 1, 1, 2, 4, 8, 15, 29, 52, 95, 168, 297, 513, 887, 1504, 2543, 4247 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,15

LINKS

Table of n, a(n) for n=0..71.

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.

Index entries for sequences related to rooted trees

EXAMPLE

1; 1,1; 1,1,1,1,1,1,1,1; ...

CROSSREFS

Sequence in context: A245808 A252797 A325333 * A309097 A309098 A136185

Adjacent sequences:  A036605 A036606 A036607 * A036609 A036610 A036611

KEYWORD

nonn,tabf,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 7 15:08 EDT 2020. Contains 336276 sequences. (Running on oeis4.)