Number of (n+1)X(5+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

A250629

Number of (n+1)X(5+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

Terms

    a(0) =7924a(1) =49310a(2) =241742a(3) =1014946a(4) =3719562a(5) =12291286a(6) =37072806a(7) =103697021a(8) =271291108a(9) =669808747a(10) =1569996305a(11) =3513623873a(12) =7540411459a(13) =15579673489a(14) =31093283813a(15) =60120915521a(16) =112914033620a(17) =206467172321a(18) =368317607017a(19) =642203244548

External references