login
A048245
Number of distinct terminal tic-tac-toe positions after n plays, up to rotation and reflection.
5
0, 0, 0, 0, 0, 21, 21, 58, 23, 15
OFFSET
0,6
COMMENTS
As in chess, a "play" is an action by a single player, a "move" is two contiguous plays by each opponent.
CROSSREFS
Cf. A008907.
Sequence in context: A040421 A022355 A371100 * A246034 A220689 A056485
KEYWORD
fini,full,nonn
AUTHOR
EXTENSIONS
Name clarified by Álvar Ibeas, Jul 27 2018
STATUS
approved