Table T(n,k) read by upward antidiagonals. T(n,k) = Product_{i=1..n} Sum_{j=1..k} (i-1)*k+j.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =21a(5) =6a(6) =24a(7) =231a(8) =90a(9) =10a(10) =120a(11) =3465a(12) =2160a(13) =260a(14) =15a(15) =720a(16) =65835a(17) =71280a(18) =10920a(19) =600a(20) =21a(21) =5040a(22) =1514205a(23) =2993760a(24) =633360a(25) =39000a(26) =1197a(27) =28a(28) =40320a(29) =40883535