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A268534
Size of free Kleene algebra on n generators.
0
2, 6, 84, 43918
OFFSET
0,1
REFERENCES
J. Berman and P. Koehler, Cardinalities of finite distributive lattices, Mitteilungen aus dem Mathematischen Seminar Giessen, 121 (1976), 103-124.
LINKS
J. Berman and P. Koehler, Cardinalities of finite distributive lattices, Mitteilungen aus dem Mathematischen Seminar Giessen, 121 (1976), 103-124. [Annotated scanned copy]
CROSSREFS
Sequence in context: A370984 A118537 A109892 * A055702 A364794 A334779
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Feb 22 2016
STATUS
approved