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A101460 Number of connected antisymmetric relations on n unlabeled nodes. 0
1, 2, 4, 32, 467, 15726, 1283648, 266995482, 145658273814, 212067643326874, 834200554714504905, 8952922576975709358534, 264287923205519914989471726, 21606715274151098406493353524694, 4921011141817073607674347572008576367 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..14.

CROSSREFS

Cf. A083670, A086345, A001174.

Sequence in context: A009110 A225170 A134958 * A118992 A012509 A062740

Adjacent sequences:  A101457 A101458 A101459 * A101461 A101462 A101463

KEYWORD

nonn

AUTHOR

Vladeta Jovovic, Jan 20 2005

STATUS

approved

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Last modified February 23 23:56 EST 2018. Contains 299595 sequences. (Running on oeis4.)