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 min(x(i,j),x(i-1,j)) in the j direction.

A250815

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 min(x(i,j),x(i-1,j)) in the j direction.

Terms

    a(0) =432a(1) =1315a(2) =3081a(3) =6171a(4) =11116a(5) =18537a(6) =29145a(7) =43741a(8) =63216a(9) =88551a(10) =120817a(11) =161175a(12) =210876a(13) =271261a(14) =343761a(15) =429897a(16) =531280a(17) =649611a(18) =786681a(19) =944371a(20) =1124652a(21) =1329585a(22) =1561321a(23) =1822101a(24) =2114256a(25) =2440207a(26) =2802465a(27) =3203631a(28) =3646396a(29) =4133541

External references