A061526 Number of complete games of n X n tic-tac-toe.

1, 24, 255168, 15038733958272, 12123953291699459229254400, 317158792989363996690190881249911852582400, 550923875790150163780873329493220621458883503713639780465715200

Offset

1,2

Comments

The sequence is bounded above by (n^2)!, the number of games of n X n tic-tac-toe that do not stop when a player wins.

Links

Table of n, a(n) for n=1..7.

J. Ferry, n X n tic-tac-toe (Mathematica programs followed by results)

Sean A. Irvine, Java program (github)

Index entries for sequences related to tic-tac-toe

Crossrefs

Cf. A008907, A048245, A048246, A061527, A061528, A061529, A061530.

Sequence in context: A289029 A287964 A173172 * A159422 A028371 A013774

Adjacent sequences: A061523 A061524 A061525 * A061527 A061528 A061529

Keyword

nonn

Author

Jim Ferry (jferry(AT)alum.mit.edu), May 04 2001

Status

approved