Inverse Euler transform of Bell numbers.

Terms

a(0) =1a(1) =1a(2) =3a(3) =9a(4) =34a(5) =135a(6) =610a(7) =2965a(8) =15612a(9) =87871a(10) =526274a(11) =3334850a(12) =22270254a(13) =156172689a(14) =1146640394a(15) =8791424549a(16) =70227355786a(17) =583283741066