E.g.f. 1/(1-sin(x))^x.

Terms

a(0) =1a(1) =0a(2) =2a(3) =3a(4) =16a(5) =70a(6) =360a(7) =2212a(8) =14488a(9) =106272a(10) =846530a(11) =7287896a(12) =67550052a(13) =669276452a(14) =7062219710a(15) =79046250480a(16) =935246925616