9120456

Appears in sequences

• Number of (n+2)X(3+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.at n=0A233613
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.at n=3A233618
• Number of (1+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.at n=2A233619