Triangle read by rows: t(n,m)=If[m == 0, 1, Product[m*k + 2, {k, 0, n}]].

Terms

a(0) =1a(1) =2a(2) =6a(3) =2a(4) =8a(5) =48a(6) =2a(7) =10a(8) =80a(9) =880a(10) =2a(11) =12a(12) =120a(13) =1680a(14) =30240a(15) =2a(16) =14a(17) =168a(18) =2856a(19) =62832a(20) =1696464a(21) =2a(22) =16a(23) =224a(24) =4480a(25) =116480a(26) =3727360a(27) =141639680a(28) =2a(29) =18