a(n) = smallest prime q such that Sum_{primes p <= q} 1/sqrt(p) >= n.

Terms

a(0) =3a(1) =7a(2) =19a(3) =41a(4) =73a(5) =113a(6) =191a(7) =271a(8) =383a(9) =509a(10) =661a(11) =859a(12) =1069a(13) =1307a(14) =1601a(15) =1931a(16) =2287a(17) =2687a(18) =3119a(19) =3583a(20) =4093a(21) =4657a(22) =5279a(23) =5881a(24) =6607a(25) =7351a(26) =8167a(27) =9001a(28) =9851a(29) =10837