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A297201 Forests of label-increasing tree (see Riordan 1978 or 1979 for precise definition). 7
1, 2, 4, 10, 34, 148, 786, 4920 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

J. Riordan, Forests of label-increasing trees, J. Graph Theory, 3 (1979), 127-133.

LINKS

Table of n, a(n) for n=0..7.

J. Riordan, Forests of label-increasing trees, annotated scanned copy of 1978 pre-publication version.

CROSSREFS

Cf. A297196, A297197, A297198, A297200, A297202, A297203, A297204.

Sequence in context: A220028 A006397 A297197 * A003422 A117402 A109455

Adjacent sequences:  A297198 A297199 A297200 * A297202 A297203 A297204

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 10 2018

STATUS

approved

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Last modified March 22 01:06 EDT 2019. Contains 321406 sequences. (Running on oeis4.)