a(n) = prime(Bell(n)).

Terms

a(0) =2a(1) =3a(2) =11a(3) =47a(4) =239a(5) =1237a(6) =6823a(7) =39323a(8) =239069a(9) =1525561a(10) =10225829a(11) =71726531a(12) =525861911a(13) =4020740833a(14) =32003840389a(15) =264714821617