Triangle read by rows: T(n, m) = 1 + (binomial(n, m) - Eulerian(n+1, m))^2.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =65a(8) =65a(9) =1a(10) =1a(11) =485a(12) =3601a(13) =485a(14) =1a(15) =1a(16) =2705a(17) =85265a(18) =85265a(19) =2705a(20) =1a(21) =1a(22) =12997a(23) =1382977a(24) =5740817a(25) =1382977a(26) =12997a(27) =1a(28) =1a(29) =57601