1,5

The n X n antelope graph is connected for n >= 8 and traceable for n = 14 and 21 (with the status for 20 and 22-25 unknown).

Table of n, a(n) for n=1..9.

Eric Weisstein's World of Mathematics, Antelope Graph

Eric Weisstein's World of Mathematics, Longest Path

Cf. A307459 (longest path lengths).

Sequence in context: A092897 A269152 A269097 * A171633 A221276 A117429

Adjacent sequences: A307549 A307550 A307551 * A307553 A307554 A307555

nonn,more

Eric W. Weisstein, Apr 13 2019

a(9) from Bert Dobbelaere, Apr 15 2019

approved