T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, with no occupancy greater than 2.

A221345

T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, with no occupancy greater than 2.

Terms

    a(0) =1a(1) =3a(2) =1a(3) =7a(4) =19a(5) =1a(6) =17a(7) =137a(8) =137a(9) =1a(10) =41a(11) =1033a(12) =2856a(13) =1001a(14) =1a(15) =99a(16) =7877a(17) =66077a(18) =60807a(19) =7305a(20) =1a(21) =239a(22) =60223a(23) =1534835a(24) =4413085a(25) =1299057a(26) =53291a(27) =1a(28) =577a(29) =460713

External references