T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having the same number of equal diagonal or antidiagonal elements, and new values 0..2 introduced in row major order.
A205361
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having the same number of equal diagonal or antidiagonal elements, and new values 0..2 introduced in row major order.
Terms
- a(0) =14a(1) =50a(2) =50a(3) =194a(4) =275a(5) =194a(6) =770a(7) =1562a(8) =1562a(9) =770a(10) =3074a(11) =8948a(12) =12866a(13) =8948a(14) =3074a(15) =12290a(16) =51458a(17) =107330a(18) =107330a(19) =51458a(20) =12290a(21) =49154a(22) =296774a(23) =904514a(24) =1329947a(25) =904514a(26) =296774a(27) =49154a(28) =196610a(29) =1716002
External references
- oeis: A205361