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A060335 Number of n-node acyclic digraphs with 3 out-points. 0
1, 28, 1610, 211820, 64144675, 44218682312, 68501035223124, 235728863806525320, 1784437537982029455525, 29470895991194487015464740, 1054563682428338672254476697886, 81276604641664521211218527866093204 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

REFERENCES

R. W. Robinson, Counting labeled acyclic digraphs, pp. 239-273 of F. Harary, editor, New Directions in the Theory of Graphs. Academic Press, NY, 1973.

LINKS

Table of n, a(n) for n=3..14.

CROSSREFS

Cf. A058876, A003025, A003026.

Sequence in context: A042512 A285029 A163033 * A194190 A190397 A004705

Adjacent sequences:  A060332 A060333 A060334 * A060336 A060337 A060338

KEYWORD

nonn

AUTHOR

Vladeta Jovovic, Apr 10 2001

STATUS

approved

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Last modified November 21 01:33 EST 2019. Contains 329349 sequences. (Running on oeis4.)