T(n,k)=Number of nXk 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.

A231700

T(n,k)=Number of nXk 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.

Terms

    a(0) =4a(1) =4a(2) =4a(3) =16a(4) =28a(5) =16a(6) =50a(7) =272a(8) =272a(9) =50a(10) =144a(11) =1998a(12) =5972a(13) =1998a(14) =144a(15) =422a(16) =13260a(17) =115583a(18) =115583a(19) =13260a(20) =422a(21) =1268a(22) =94996a(23) =2049855a(24) =6074096a(25) =2049855a(26) =94996a(27) =1268a(28) =3823a(29) =691229

External references