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

A221898

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

Terms

    a(0) =1a(1) =3a(2) =3a(3) =6a(4) =31a(5) =6a(6) =13a(7) =258a(8) =266a(9) =13a(10) =28a(11) =2241a(12) =7667a(13) =2305a(14) =28a(15) =60a(16) =19408a(17) =236532a(18) =235332a(19) =19936a(20) =60a(21) =129a(22) =167960a(23) =7235107a(24) =25821731a(25) =7197649a(26) =172624a(27) =129a(28) =277a(29) =1453952

External references