Fifth column of triangle A103371 (without leading zeros).

Terms

a(0) =1a(1) =30a(2) =315a(3) =1960a(4) =8820a(5) =31752a(6) =97020a(7) =261360a(8) =637065a(9) =1431430a(10) =3006003a(11) =5962320a(12) =11262160a(13) =20391840a(14) =35581680a(15) =60093504a(16) =98590905a(17) =157608990a(18) =246142435a(19) =376372920a(20) =564559380a(21) =832117000a(22) =1206913500a(23) =1724814000a(24) =2431508625