A038816 Number of primes less than n*10^7.

664579, 1270607, 1857859, 2433654, 3001134, 3562115, 4118064, 4669382, 5216954, 5761455, 6303309, 6841648, 7378187, 7912199, 8444396, 8974458, 9503083, 10030385, 10555473, 11078937, 11601626, 12122540, 12642573

Offset: 1

Author

Jeff Burch

Keywords

• nonn

Links

• Robert G. Wilson v, Table of n, a(n) for n = 1..10000
• Andrew R. Booker, The Nth Prime Page
• Thomas R. Nicely, Some Results of Computational Research in Prime Numbers [See local copy in A007053]
• Tomás Oliveira e Silva, Tables of values of pi(x) and of pi2(x)

Crossrefs

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

Programs

Mathematica

Table[ PrimePi[ n*10^7 ], {n, 1, 30} ]

PARI

a(n)=primepi(10^7*n) \\ Charles R Greathouse IV, Apr 29 2015

Extensions

More terms from Robert G. Wilson v, Aug 27 2001

Edited and extended by Robert G. Wilson v, Jan 29 2003