0,1

Daniel Forgues, Table of n, a(n) for n = 0..33332

(Sage) [prime_pi(3*n) for n in range(1, 51)] # Zerinvary Lajos, Jun 06 2009

Cf. A000720, A099802.

Sequence in context: A258632 A263283 A128635 * A081063 A081304 A137721

Adjacent sequences: A100634 A100635 A100636 * A100638 A100639 A100640

easy,nonn

Giovanni Teofilatto, Dec 04 2004

Entry for n = 46 corrected and edited to a(n) = 34 (was 33) by Daniel Forgues, Feb 02 2009

approved