A361583 Number of digraphs on n unlabeled nodes whose strongly connected components are complete digraphs.

1, 1, 3, 12, 88, 1217, 34672, 2039085, 246005109, 60296886108, 29828186693218, 29663937774464786, 59172529527454608139, 236453014376786629601848, 1891427400988740573006253862, 30274661556583530830890359188257, 969429810937979825934973090455224882

Offset

0,3

Links

Table of n, a(n) for n=0..16.

Prog

(PARI) A361583seq(16) \\ See PARI link in A350794 for program code.

Crossrefs

The labeled version is A361560.

Cf. A000273, A350794, A361584, A361585.

Sequence in context: A039305 A174463 A367143 * A361584 A124191 A065087

Adjacent sequences: A361580 A361581 A361582 * A361584 A361585 A361586

Keyword

nonn

Author

Andrew Howroyd, Mar 16 2023

Status

approved