56306491

Appears in sequences

• Number of nX3 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no 2-loops and with no occupancy greater than 2.at n=7A217223
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no 2-loops and with no occupancy greater than 2.at n=47A217227