Numerator of Laguerre(n, -9).

Terms

a(0) =1a(1) =10a(2) =119a(3) =271a(4) =8315a(5) =70499a(6) =174139a(7) =8731657a(8) =376455481a(9) =13762207a(10) =23585826391a(11) =61123934273