Number of (n+1) X (6+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)-x(i-1,j) in the j direction.

A250609

Number of (n+1) X (6+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)-x(i-1,j) in the j direction.

Terms

    a(0) =502a(1) =1172a(2) =2236a(3) =3890a(4) =6526a(5) =10928a(6) =18664a(7) =32870a(8) =59818a(9) =112052a(10) =214660a(11) =417818a(12) =821878a(13) =1627544a(14) =3236224a(15) =6450734a(16) =12876706a(17) =25725404a(18) =51419356a(19) =102803618a(20) =205568302a(21) =411093632a(22) =822140056a(23) =1644228470a(24) =3288400666a(25) =6576740228

External references