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

A221723

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

Terms

    a(0) =1a(1) =3a(2) =1a(3) =8a(4) =31a(5) =1a(6) =21a(7) =318a(8) =306a(9) =1a(10) =55a(11) =3605a(12) =11733a(13) =2989a(14) =1a(15) =144a(16) =39851a(17) =544757a(18) =429160a(19) =29135a(20) =1a(21) =377a(22) =441912a(23) =24019048a(24) =81980587a(25) =15672482a(26) =283872a(27) =1a(28) =987a(29) =4896043

External references