a(n) = min{ m : sum_{n <= i <= m} 1/p_i > 1}, where p_i is the i-th prime = A000040(i).

Terms

a(0) =3a(1) =10a(2) =29a(3) =69a(4) =148a(5) =258a(6) =430a(7) =658a(8) =985a(9) =1401a(10) =1876a(11) =2490a(12) =3181a(13) =3994a(14) =4992a(15) =6152a(16) =7436a(17) =8846a(18) =10495a(19) =12298a(20) =14315a(21) =16634a(22) =19146a(23) =21929a(24) =24928a(25) =28081a(26) =31520a(27) =35347a(28) =39514a(29) =44131