A382159 Number of n-node acyclic digraphs, not necessarily connected, which are squares.

1, 1, 2, 5, 17, 81, 600, 7182, 142425, 4664203, 4071974770

Offset

0,3

Comments

For the definition of the square of a graph, see A382180.

Links

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

Crossrefs

Cf. A382180, A382157, A382158.

Sequence in context: A020125 A076322 A098540 * A079574 A363002 A032262

Adjacent sequences: A382156 A382157 A382158 * A382160 A382161 A382162

Keyword

nonn,more

Author

N. J. A. Sloane, Mar 24 2025, based on an email from Brendan McKay, Mar 18 2025

Status

approved