Number of numbers <= p^2 with largest prime factor <= p, where p is the n-th prime; a(0) = 1.

Terms

a(0) =1a(1) =3a(2) =7a(3) =16a(4) =30a(5) =61a(6) =88a(7) =138a(8) =177a(9) =248a(10) =361a(11) =423a(12) =569a(13) =690a(14) =777a(15) =924a(16) =1137a(17) =1370a(18) =1495a(19) =1765a(20) =1979a(21) =2129a(22) =2452a(23) =2711a(24) =3075a(25) =3563a(26) =3871a(27) =4078a(28) =4412a(29) =4639