Number of 5 X n 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

A223841

Number of 5 X n 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

Terms

    a(0) =6a(1) =36a(2) =149a(3) =471a(4) =1240a(5) =2884a(6) =6159a(7) =12371a(8) =23716a(9) =43790a(10) =78342a(11) =136368a(12) =231677a(13) =385101a(14) =627571a(15) =1004341a(16) =1580713a(17) =2449699a(18) =3742152a(19) =5640008a(20) =8393406a(21) =12342594a(22) =17945687a(23) =25813519a(24) =36753026a(25) =51820812a(26) =72388786a(27) =100224016a(28) =137585227a(29) =187338675

External references