2,1
Eric Weisstein's World of Mathematics, Hamiltonian Path
Eric Weisstein's World of Mathematics, Andrasfai Graph
Sequence in context: A155707 A017522 A180413 * A204398 A204391 A033696
Adjacent sequences: A137882 A137883 A137884 * A137886 A137887 A137888
nonn,more
E. W. Weisstein (eric(AT)weisstein.com), Feb 20, 2008