OFFSET
1,5
COMMENTS
The n X n fiveleaper graph is connected for n >=8 and traceable from n = 8 up to at least n = 29, meaning a(n) = n^2 - 1 for a(n) with 8 <= n <= 29 (and probably all larger n).
LINKS
Eric Weisstein's World of Mathematics, Fiveleaper Graph
Eric Weisstein's World of Mathematics, Longest Path
FORMULA
Conjectures from Colin Barker, Jun 14 2019: (Start)
G.f.: x^5*(2 + 13*x - 4*x^2 - 23*x^3 + 13*x^4 + x^5) / (1 - x)^3.
a(n) = n^2 - 1 for n>7.
(End)
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Apr 14 2019
STATUS
approved