T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without consecutive moves in the same direction.

A221507

T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without consecutive moves in the same direction.

Terms

    a(0) =0a(1) =1a(2) =0a(3) =0a(4) =9a(5) =0a(6) =1a(7) =44a(8) =64a(9) =0a(10) =0a(11) =446a(12) =664a(13) =441a(14) =0a(15) =1a(16) =3334a(17) =31663a(18) =12495a(19) =3025a(20) =0a(21) =0a(22) =27540a(23) =730874a(24) =2691211a(25) =221614a(26) =20736a(27) =0a(28) =1a(29) =219070

External references