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
