Number of primes corresponding to n-th primeval number A072857(n).

Terms

a(0) =0a(1) =1a(2) =3a(3) =4a(4) =5a(5) =7a(6) =11a(7) =14a(8) =19a(9) =21a(10) =26a(11) =29a(12) =31a(13) =33a(14) =35a(15) =41a(16) =53a(17) =55a(18) =60a(19) =64a(20) =89a(21) =96a(22) =106a(23) =122a(24) =153a(25) =188a(26) =248a(27) =311a(28) =349a(29) =402