A058248 Number of primes <= 12^n.

0, 5, 34, 269, 2334, 21950, 215880, 2194607, 22847147, 242104347, 2601245287, 28259222007, 309787170203, 3421648542571, 38034025346108, 425087937349054, 4773520663632666, 53826449764030293, 609169697312869287, 6916564779879112525, 78759689142381711336

Offset

0,2

Links

David Baugh, Table of n, a(n) for n = 0..24 (terms n = 20..24 found using Kim Walisch's primecount program)

Index entries for sequences related to numbers of primes in various ranges

Formula

a(n) = pi(12^n), where pi is the prime counting function (A000720). - Wesley Ivan Hurt, Oct 02 2020

Mathematica

Table[PrimePi[12^n], {n, 0, 12}]

Crossrefs

Cf. A000720 (pi), A006880 (10^n), A007053 (2^n).

Sequence in context: A243659 A365183 A371391 * A116435 A292877 A257887

Adjacent sequences: A058245 A058246 A058247 * A058249 A058250 A058251

Keyword

nonn

Author

Robert G. Wilson v, Dec 04 2000

Extensions

a(13)-a(19) from Henri Lifchitz, Aug 25 2014

a(20) from David Baugh, Sep 30 2020

Status

approved