A338708 Number of 4-linear trees on n nodes.

0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 6, 37, 158, 591, 1896, 5537, 14812, 37133, 87841, 198267, 429199, 896731, 1814978, 3572810, 6858774

Offset

1,11

References

Wakhare, Tanay, Eric Wityk, and Charles R. Johnson. "The proportion of trees that are linear." Discrete Mathematics 343.10 (2020): 112008. Also arXiv:1901.08502v2. See Tables 1 and 2 (but beware errors).

Links

Table of n, a(n) for n=1..25.

Crossrefs

Cf. A130131, A338706, A338707.

Sequence in context: A362336 A349857 A047670 * A129552 A293800 A327611

Adjacent sequences: A338705 A338706 A338707 * A338709 A338710 A338711

Keyword

nonn,more

Author

N. J. A. Sloane, Nov 05 2020

Status

approved