A038821 Number of primes less than n*10^12.

37607912018, 73301896139, 108340298703, 142966208126, 177291661649, 211381427039, 245277688804, 279010070811, 312600354108, 346065536839, 379418886337, 412671294782, 445831610611, 478907544860, 511905471132

Offset

1,1

Links

Robert G. Wilson v, Table of n, a(n) for n = 1..10000

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)

Andrew R. Booker, The Nth Prime Page

Mathematica

Table[ PrimePi[ n*10^12 ], {n, 1, 15}]

Prog

(PARI) a(n)=primepi(10^12*n) \\ Charles R Greathouse IV, Apr 29 2015

Crossrefs

Cf. A038801, A028505, A038812, A038813, A038814, A038815, A038816, A038817, A038818, A038819, A038820, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A080129.

Sequence in context: A295355 A178221 A038832 * A139780 A234072 A112446

Adjacent sequences: A038818 A038819 A038820 * A038822 A038823 A038824

Keyword

nonn

Author

Jeff Burch

Extensions

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

Status

approved