Number of (2+1)X(n+1) 0..2 arrays with nondecreasing 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.
A250944
Number of (2+1)X(n+1) 0..2 arrays with nondecreasing 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) =125a(1) =699a(2) =3355a(3) =15431a(4) =67595a(5) =287045a(6) =1188599a(7) =4827913a(8) =19308213a(9) =76254749a(10) =298049037a(11) =1154930779a(12) =4442888465a(13) =16986179207a(14) =64600876511a(15) =244577899139a(16) =922363567903
External references
- oeis: A250944