Denominator of Laguerre(n, -3).

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =8a(5) =10a(6) =80a(7) =35a(8) =4480a(9) =1120a(10) =6400a(11) =61600a(12) =1971200a(13) =6406400a(14) =358758400a(15) =112112000a(16) =28700672000a(17) =17425408000a(18) =975822848000