159968

Appears in sequences

• a(n) = 625*n^2 - 2*n.at n=15A158373
• Number of nX2 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without move-in move-out straight through or left turns.at n=7A221805
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without move-in move-out straight through or left turns.at n=43A221809