T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.

A283415

T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.

Terms

    a(0) =2a(1) =4a(2) =4a(3) =8a(4) =16a(5) =8a(6) =16a(7) =61a(8) =61a(9) =16a(10) =32a(11) =236a(12) =416a(13) =236a(14) =32a(15) =64a(16) =912a(17) =2944a(18) =2944a(19) =912a(20) =64a(21) =128a(22) =3525a(23) =20744a(24) =39268a(25) =20744a(26) =3525a(27) =128a(28) =256a(29) =13624

External references