2,2

a(n) = (A000040(n) - A109833(n)) / A109831(n).

Table of n, a(n) for n=2..70.

Eric Weisstein's World of Mathematics, Prime Arithmetic Progression

Index entries for sequences related to primes in arithmetic progressions

Sequence in context: A302928 A098214 A178883 * A309075 A039731 A005341

Adjacent sequences: A109829 A109830 A109831 * A109833 A109834 A109835

nonn

Reinhard Zumkeller, Jul 04 2005

approved