T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..3 introduced in row major order.

A231363

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..3 introduced in row major order.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =5a(5) =4a(6) =12a(7) =16a(8) =16a(9) =12a(10) =33a(11) =51a(12) =69a(13) =51a(14) =33a(15) =102a(16) =180a(17) =314a(18) =314a(19) =180a(20) =102a(21) =329a(22) =685a(23) =1588a(24) =2190a(25) =1588a(26) =685a(27) =329a(28) =1075a(29) =2735

External references