T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
A250797
T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
Terms
- a(0) =10a(1) =24a(2) =24a(3) =54a(4) =66a(5) =58a(6) =118a(7) =162a(8) =180a(9) =140a(10) =252a(11) =376a(12) =482a(13) =490a(14) =338a(15) =530a(16) =838a(17) =1190a(18) =1430a(19) =1336a(20) =816a(21) =1102a(22) =1818a(23) =2776a(24) =3776a(25) =4258a(26) =3646a(27) =1970a(28) =2272a(29) =3868
External references
- oeis: A250797