Ceiling of Gamma(n+1/9)/Gamma(1/9).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =4a(6) =18a(7) =105a(8) =741a(9) =6006a(10) =54718a(11) =553254a(12) =6147264a(13) =74450194a(14) =976124761a(15) =13774204959a(16) =208143541602