T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 0101 or 1111.
A259524
T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 0101 or 1111.
Terms
- a(0) =12a(1) =38a(2) =38a(3) =120a(4) =208a(5) =120a(6) =380a(7) =1122a(8) =1122a(9) =380a(10) =1204a(11) =6100a(12) =10148a(13) =6100a(14) =1204a(15) =3816a(16) =33162a(17) =93028a(18) =93028a(19) =33162a(20) =3816a(21) =12096a(22) =180370a(23) =851604a(24) =1447270a(25) =851604a(26) =180370a(27) =12096a(28) =38344a(29) =981092
External references
- oeis: A259524