A101460 Number of connected antisymmetric relations on n unlabeled nodes.

1, 2, 4, 32, 467, 15726, 1283648, 266995482, 145658273814, 212067643326874, 834200554714504905, 8952922576975709358534, 264287923205519914989471726, 21606715274151098406493353524694, 4921011141817073607674347572008576367

Offset: 0

Author

Vladeta Jovovic, Jan 20 2005

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 0..50

Crossrefs

Cf. A083670, A086345, A001174.

Formula

Inverse Euler transform of A083670. - Andrew Howroyd, Oct 24 2019