Triangle read by rows: T(n,k) = Product_{i=n-k+1..n} i! for 0 <= k <= n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =1a(7) =6a(8) =12a(9) =12a(10) =1a(11) =24a(12) =144a(13) =288a(14) =288a(15) =1a(16) =120a(17) =2880a(18) =17280a(19) =34560a(20) =34560a(21) =1a(22) =720a(23) =86400a(24) =2073600a(25) =12441600a(26) =24883200a(27) =24883200a(28) =1a(29) =5040