0,6
As in chess, a "play" is an action by a single player, a "move" is two contiguous plays by each opponent.
Index entries for sequences related to tic-tac-toe
A008907.
Sequence in context: A151910 A040421 A022355 * A056485 A056475 A165842
Adjacent sequences: A048242 A048243 A048244 * A048246 A048247 A048248
fini,full,nonn
Robert W. Pratt (Rob.Pratt(AT)sas.com)