T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..2 introduced in row major order.

A205626

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..2 introduced in row major order.

Terms

    a(0) =14a(1) =50a(2) =72a(3) =194a(4) =306a(5) =396a(6) =770a(7) =1512a(8) =2052a(9) =2160a(10) =3074a(11) =8004a(12) =13068a(13) =13800a(14) =11808a(15) =12290a(16) =43248a(17) =94116a(18) =113592a(19) =92934a(20) =64512a(21) =49154a(22) =235464a(23) =708300a(24) =1103436a(25) =992088a(26) =625512a(27) =352512a(28) =196610a(29) =1284960

External references