Triangle read by rows: multiply Pascal's triangle by 1,2,6,24,120,720,... = A000142.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =6a(6) =1a(7) =6a(8) =18a(9) =24a(10) =1a(11) =8a(12) =36a(13) =96a(14) =120a(15) =1a(16) =10a(17) =60a(18) =240a(19) =600a(20) =720a(21) =1a(22) =12a(23) =90a(24) =480a(25) =1800a(26) =4320a(27) =5040a(28) =1a(29) =14