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A122674
Number of trees with n nodes generated from the simple cubic lattice.
1
1, 1, 2, 8, 35, 240
OFFSET
1,3
REFERENCES
J. R. Long and R. H. Holm, Enumeration and structural classification of clusters derived from parent solids ..., J. Amer. Chem. Soc., 116 (1994), 9987-10002.
CROSSREFS
Sequence in context: A020009 A257555 A007508 * A203762 A185635 A076122
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Sep 23 2006
STATUS
approved