a(n) = floor(Gamma(n+3/11)/Gamma(3/11)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =2a(5) =11a(6) =58a(7) =364a(8) =2653a(9) =21951a(10) =203550a(11) =2091015a(12) =23571444a(13) =289285911a(14) =3839613003a(15) =54801749236a(16) =836972170164