321689

Appears in sequences

• Number of legal positions in Go played on an n X n+1 grid (each group must have at least one liberty).at n=2A268113
• Symmetric array read by antidiagonals: T(n,k) is the number of legal positions in Go on an n X k board.at n=17A356049
• Symmetric array read by antidiagonals: T(n,k) is the number of legal positions in Go on an n X k board.at n=18A356049
• Triangular array giving total number of legal Go positions on an n X k board.at n=8A356134