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A082403 E.g.f.: 1-1/B(x) where B(x) is e.g.f. for A003024. 0
0, 1, 1, 13, 373, 24061, 3430021, 1085594413, 765444156373, 1199327541421981, 4150826776751106181, 31511604323119334675053, 521181162682913685911315413, 18663030289006900328937074926621 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

REFERENCES

R. W. Robinson, Counting labeled acyclic digraphs, p. 264 of F. Harary, editor, New Directions in the Theory of Graphs. Academic Press, NY, 1973

CROSSREFS

Sequence in context: A009040 A009085 A012013 * A171656 A134498 A142122

Adjacent sequences:  A082400 A082401 A082402 * A082404 A082405 A082406

KEYWORD

nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 15 2003

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Last modified February 13 12:09 EST 2012. Contains 205469 sequences.