Number of (3+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.

A250758

Number of (3+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.

Terms

    a(0) =332a(1) =756a(2) =1353a(3) =2123a(4) =3066a(5) =4182a(6) =5471a(7) =6933a(8) =8568a(9) =10376a(10) =12357a(11) =14511a(12) =16838a(13) =19338a(14) =22011a(15) =24857a(16) =27876a(17) =31068a(18) =34433a(19) =37971a(20) =41682a(21) =45566a(22) =49623a(23) =53853a(24) =58256a(25) =62832a(26) =67581a(27) =72503a(28) =77598a(29) =82866

External references