A143247 Number of (directed) Hamiltonian circuits in the Mycielski graph of order n.

0, 0, 2, 20, 204620, 307496731215640

Offset

1,3

Links

Table of n, a(n) for n=1..6.

Eric Weisstein's World of Mathematics, Hamiltonian Cycle

Eric Weisstein's World of Mathematics, Mycielski Graph

Crossrefs

Sequence in context: A356689 A346564 A249646 * A395172 A342079 A303216

Adjacent sequences: A143244 A143245 A143246 * A143248 A143249 A143250

Keyword

nonn,more,hard

Author

Eric W. Weisstein, Aug 01 2008

Extensions

a(6) from Eric W. Weisstein, Aug 25 2025

Status

approved