Invert transform of the Bell numbers.

Terms

a(0) =1a(1) =1a(2) =3a(3) =10a(4) =36a(5) =138a(6) =560a(7) =2402a(8) =10898a(9) =52392a(10) =267394a(11) =1450790a(12) =8371220a(13) =51327178a(14) =333759746a(15) =2295276480a(16) =16639104002a(17) =126718172670