Number of nX2 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

A200852

Number of nX2 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Terms

    a(0) =15a(1) =105a(2) =647a(3) =3728a(4) =20656a(5) =111222a(6) =586908a(7) =3047226a(8) =15620118a(9) =79228317a(10) =398364306a(11) =1988133262a(12) =9858922561a(13) =48617189158a(14) =238575216150

External references