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 A091177 Numbers m such that the m-th prime is of the form 3*k-1. 9
 1, 3, 5, 7, 9, 10, 13, 15, 16, 17, 20, 23, 24, 26, 28, 30, 32, 33, 35, 39, 40, 41, 43, 45, 49, 51, 52, 54, 55, 56, 57, 60, 62, 64, 66, 69, 71, 72, 76, 77, 79, 81, 83, 86, 87, 89, 91, 92, 94, 96, 97, 98, 102, 103, 104, 107, 108, 109, 113, 116, 118, 119, 120, 123, 124, 126 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS A003627 indexed by A000040. The asymptotic density of this sequence is 1/2 (by Dirichlet's theorem). - Amiram Eldar, Feb 28 2021 LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 FORMULA a(n) = k such that A000040(k) = A003627(n). MATHEMATICA PrimePi/@Select[3Range[0, 250]-1, PrimeQ]  (* Harvey P. Dale, Apr 26 2011 *) CROSSREFS A003627 gives primes arising in A024893, A087370, A088879. A133677 is another version. Sequence in context: A080207 A187347 A187413 * A066929 A173909 A165249 Adjacent sequences:  A091174 A091175 A091176 * A091178 A091179 A091180 KEYWORD easy,nonn AUTHOR Ray Chandler, Dec 26 2003 STATUS approved

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Last modified July 25 20:18 EDT 2021. Contains 346291 sequences. (Running on oeis4.)