A036615 Number of 5-ary rooted trees with n nodes and height at most 4.

1, 1, 1, 2, 4, 8, 15, 28, 50, 89, 155, 267, 451, 757, 1251, 2048, 3316, 5315, 8433, 13256, 20641, 31847, 48704, 73817, 110932, 165266, 244175, 357699, 519760, 748973, 1070637, 1517978, 2135238, 2979427, 4124960, 5665880, 7722472

Offset

0,4

Links

Sean A. Irvine, Table of n, a(n) for n = 0..155

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

Crossrefs

Sequence in context: A101976 A339656 A196723 * A006808 A006727 A007673

Adjacent sequences: A036612 A036613 A036614 * A036616 A036617 A036618

Keyword

nonn,fini,full

Author

N. J. A. Sloane.

Status

approved