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A297196 Forests of label-increasing tree (see Riordan 1978 or 1979 for precise definition). 8
1, 1, 1, 2, 6, 23, 108, 601, 3863 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

REFERENCES

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

LINKS

Table of n, a(n) for n=0..8.

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

CROSSREFS

Cf. A297197, A297198, A297200, A297201, A297202, A297203, A297204.

Sequence in context: A101053 A155857 A071076 * A112501 A093345 A289681

Adjacent sequences:  A297193 A297194 A297195 * A297197 A297198 A297199

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 10 2018

STATUS

approved

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Last modified March 21 07:23 EDT 2019. Contains 321367 sequences. (Running on oeis4.)