Number of (5+1) X (n+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.

A250817

Number of (5+1) X (n+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) =4356a(1) =13735a(2) =32745a(3) =66291a(4) =120304a(5) =201741a(6) =318585a(7) =479845a(8) =695556a(9) =976779a(10) =1335601a(11) =1785135a(12) =2339520a(13) =3013921a(14) =3824529a(15) =4788561a(16) =5924260a(17) =7250895a(18) =8788761a(19) =10559179a(20) =12584496a(21) =14888085a(22) =17494345a(23) =20428701a(24) =23717604a(25) =27388531a(26) =31469985

External references