A126094 Numbers k such that prime(k) = A123206(n).

4, 7, 22, 83, 5878, 12229, 14871, 43360, 120833116, 284116756, 384239518, 586968768, 2697787565123, 11550434172799, 65612899915231, 252252704148332, 2105877470620834, 36504944044141057, 4194084944223361535

Offset: 1

Author

Alexander Adamchuk, Mar 03 2007

Keywords

• hard
• more
• nonn

Links

• Kim Walisch, Fast C++ prime counting function implementation (primecount).

Crossrefs

Cf. A000720, A123206.

Formula

a(n) = A000720(A123206(n)).

Extensions

a(13)-a(14) from Max Alekseyev, Feb 23 2012

a(15)-a(19) using Kim Walisch's primecount, from Amiram Eldar, Mar 24 2019