T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out left turns.

A221655

T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out left turns.

Terms

    a(0) =0a(1) =1a(2) =0a(3) =2a(4) =4a(5) =0a(6) =4a(7) =24a(8) =12a(9) =0a(10) =8a(11) =165a(12) =230a(13) =40a(14) =0a(15) =16a(16) =1054a(17) =5879a(18) =2594a(19) =136a(20) =0a(21) =32a(22) =6862a(23) =128076a(24) =233781a(25) =28478a(26) =460a(27) =0a(28) =64a(29) =44576

External references