29258

Appears in sequences

• Irregular triangle read by rows: T(n,k) is the number of n X n tic-tac-toe positions (up to rotation and reflection) with k tokens (i.e., after k plays) which allow a winning strategy for O (n > 0, 0 <= k <= n^2).at n=30A317574
• Number of compositions (ordered partitions) of n into distinct parts where no part is a multiple of 4.at n=36A332310
• Number of unlabeled loop-graphs covering n vertices with at most n edges.at n=11A370169