OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Hamiltonian Path
Eric Weisstein's World of Mathematics, Queen Graph
FORMULA
a(n) = A158664(n)/2 for n > 1.
CROSSREFS
KEYWORD
nonn,more,hard
AUTHOR
Eric W. Weisstein, May 14 2019
EXTENSIONS
a(1) changed to 1 by Martin Fuller, Mar 13 2026
STATUS
approved