Dirichlet convolution of primes (with 1) with Bell numbers.

Terms

a(0) =1a(1) =3a(2) =5a(3) =12a(4) =22a(5) =70a(6) =216a(7) =909a(8) =4165a(9) =21207a(10) =116004a(11) =678741a(12) =4213634a(13) =27644897a(14) =190899424a(15) =1382960388a(16) =10480142200a(17) =82864878340a(18) =682076806220