1,9

Table of n, a(n) for n=1..55.

Example: for p(9)=23, the primes counted are 5,13,17,19.

Sequence in context: A198101 A058634 A037919 * A112349 A231821 A062072

Adjacent sequences: A049846 A049847 A049848 * A049850 A049851 A049852

nonn

Clark Kimberling

approved