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A092918 Number of connected hypergraphs (without multiple edges and without empty edges) on n labeled vertices. 16
2, 4, 96, 31840, 2147156736, 9223372011084915712, 170141183460469231602560095199828453376, 57896044618658097711785492504343953923912733397452774312021795134847892828160 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Goran Kilibarda and Vladeta Jovovic, Enumeration of some classes of T_0-hypergraphs, arXiv:1411.4187 [math.CO], 2014.
FORMULA
E.g.f.: log(Sum(2^(2^n-1)*x^n/n!, n=0..infinity)).
CROSSREFS
Sequence in context: A007534 A299784 A009379 * A018428 A128773 A101068
KEYWORD
nonn
AUTHOR
Goran Kilibarda and Vladeta Jovovic, Apr 16 2004
STATUS
approved

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)