Dirichlet convolution of Catalan numbers with Bell numbers.

Terms

a(0) =1a(1) =2a(2) =4a(3) =11a(4) =29a(5) =98a(6) =335a(7) =1316a(8) =5574a(9) =26038a(10) =132771a(11) =737470a(12) =4421609a(13) =28387672a(14) =193573820a(15) =1392654721a(16) =10515499817a(17) =82994520352a(18) =682554444859