T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..3 introduced in row major order.
A205170
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..3 introduced in row major order.
Terms
- a(0) =13a(1) =159a(2) =159a(3) =2277a(4) =8479a(5) =2277a(6) =33831a(7) =474853a(8) =474853a(9) =33831a(10) =506493a(11) =26702419a(12) =100138314a(13) =26702419a(14) =506493a(15) =7594479a(16) =1502057181a(17) =21125224557a(18) =21125224557a(19) =1502057181a(20) =7594479a(21) =113908437a(22) =84495589507
External references
- oeis: A205170