T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.

A221125

T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.

Terms

    a(0) =1a(1) =3a(2) =1a(3) =8a(4) =21a(5) =1a(6) =21a(7) =200a(8) =144a(9) =1a(10) =55a(11) =1950a(12) =4872a(13) =987a(14) =1a(15) =144a(16) =19005a(17) =179300a(18) =118472a(19) =6765a(20) =1a(21) =377a(22) =185164a(23) =6405243a(24) =16436223a(25) =2880520a(26) =46368a(27) =1a(28) =987a(29) =1803949

External references