Denominator of Laguerre(n, 9).

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =8a(5) =5a(6) =80a(7) =140a(8) =4480a(9) =560a(10) =44800a(11) =123200a(12) =1971200a(13) =1601600a(14) =358758400a(15) =448448000a(16) =2207744000a(17) =60988928000a(18) =75063296000