

A129349


Number of directed Hamiltonian circuits in the ntriangular graph.


2




OFFSET

2,2


LINKS

Table of n, a(n) for n=2..8.
Eric Weisstein's World of Mathematics, Hamiltonian Cycle
Eric Weisstein's World of Mathematics, Triangular Graph


CROSSREFS

Sequence in context: A012599 A247859 A202629 * A180127 A091804 A012853
Adjacent sequences: A129346 A129347 A129348 * A129350 A129351 A129352


KEYWORD

nonn,more


AUTHOR

Eric W. Weisstein, Apr 10 2007


EXTENSIONS

a(6) from Alois P. Heinz, Nov 29 2010
a(7)a(8) from Eric W. Weisstein, Mar 31 2014
Missing factor of 2 applied to a(8) by Eric W. Weisstein, Apr 08 2014
Offset corrected by Eric W. Weisstein, May 06 2019


STATUS

approved



