A350730 Number of strongly connected oriented graphs on n labeled nodes.

1, 0, 2, 66, 7998, 2895570, 3015624078, 8890966977354, 74079608267459142, 1754419666770364130730, 119163820122708911990211222, 23431180614718394105521543222866, 13448652672256961901980839022683943838, 22684139279519345808802725789494254587951810

Offset: 1

Author

Andrew Howroyd, Jan 11 2022

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 1..50

Crossrefs

The unlabeled version is A350489.

Row sums of A350731.

Cf. A003030, A054941.

Programs

PARI

StrongO(14) \\ See A350731 for program code.