A090473 Primes in A047783.

2, 2, 3, 5, 5, 7, 7, 7, 11, 11, 11, 13, 13, 13, 13, 17, 17, 17, 17, 19, 19, 19, 19, 23, 23, 23, 23, 29, 29, 29, 29, 29, 31, 31, 31, 31, 37, 37, 37, 37, 37, 41, 41, 41, 41, 41, 43, 43, 43, 43, 43, 47, 47, 47, 47, 47, 53, 53, 53, 53, 53, 53, 59, 59, 59, 59, 59, 59, 61, 61, 61, 61

Offset

1,1

Comments

The logarithmic integral can be computed in PARI: Li(x) = -eint1(log(1/x)).

Links

Table of n, a(n) for n=1..72.

Prog

(PARI) lip(n) = forstep(x=1, n, 1, y=floor(-eint1(log(1/x))); if(isprime(y), print1(y", ")))

Crossrefs

Cf. A047783.

Sequence in context: A381057 A105605 A237710 * A380960 A113636 A262463

Adjacent sequences: A090470 A090471 A090472 * A090474 A090475 A090476

Keyword

easy,nonn

Author

Cino Hilliard, Feb 01 2004

Extensions

Edited by David Wasserman, Nov 16 2005

Status

approved