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A094630 Number of 3-uniform T_0-covers on n vertices. 2
1, 0, 0, 0, 5, 893, 1039947, 34351783511, 72057317345649377, 19342812465159881755696499, 1329227995591486918148744122456237749 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..10.

FORMULA

E.g.f.: exp(-x+x^2/2+x^3/3)*Sum(2^binomial(n, 3)*exp(-2^(n-1)*x^2)*x^n/n!, n=0..infinity).

CROSSREFS

Cf. A094631, A059530, A060070.

Sequence in context: A299065 A299837 A299726 * A284637 A173914 A015940

Adjacent sequences:  A094627 A094628 A094629 * A094631 A094632 A094633

KEYWORD

nonn

AUTHOR

Goran Kilibarda, Vladeta Jovovic, May 15 2004

STATUS

approved

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Last modified February 20 22:51 EST 2019. Contains 320362 sequences. (Running on oeis4.)