Triangle with n-th row polynomial equal to Product_{k = 1..n} (x + n + k).

Terms

a(0) =1a(1) =2a(2) =1a(3) =12a(4) =7a(5) =1a(6) =120a(7) =74a(8) =15a(9) =1a(10) =1680a(11) =1066a(12) =251a(13) =26a(14) =1a(15) =30240a(16) =19524a(17) =5000a(18) =635a(19) =40a(20) =1a(21) =665280a(22) =434568a(23) =117454a(24) =16815a(25) =1345a(26) =57a(27) =1a(28) =17297280a(29) =11393808