39224

Appears in sequences

• Number of nX3 binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.at n=7A228655
• T(n,k)=Number of nXk binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.at n=52A228660
• Half thrice the previous number, rounded down, plus 1, starting with 6.at n=21A302748