Triangle T(n,m)= binomial(n, m)/Beta(m + 1, n - m + 1) read by rows.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =12a(5) =3a(6) =4a(7) =36a(8) =36a(9) =4a(10) =5a(11) =80a(12) =180a(13) =80a(14) =5a(15) =6a(16) =150a(17) =600a(18) =600a(19) =150a(20) =6a(21) =7a(22) =252a(23) =1575a(24) =2800a(25) =1575a(26) =252a(27) =7a(28) =8a(29) =392