Irregular triangle T(n,k) = n!* A036040(n,k), read by rows, 1 <= k <= A000041(n).

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =6a(5) =18a(6) =6a(7) =24a(8) =96a(9) =72a(10) =144a(11) =24a(12) =120a(13) =600a(14) =1200a(15) =1200a(16) =1800a(17) =1200a(18) =120a(19) =720a(20) =4320a(21) =10800a(22) =7200a(23) =10800a(24) =43200a(25) =10800a(26) =14400a(27) =32400a(28) =10800a(29) =720