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

A221245

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

Terms

    a(0) =0a(1) =1a(2) =0a(3) =2a(4) =9a(5) =0a(6) =4a(7) =50a(8) =64a(9) =0a(10) =8a(11) =484a(12) =1056a(13) =441a(14) =0a(15) =16a(16) =3864a(17) =45369a(18) =21660a(19) =3025a(20) =0a(21) =32a(22) =32400a(23) =1337130a(24) =4096576a(25) =441720a(26) =20736a(27) =0a(28) =64a(29) =267264

External references