A214924 Number of primes <= A214756(n).

1, 1, 1, 7, 20, 28, 96, 152, 185, 212, 1179, 1829, 2217, 3382, 14350, 30780, 31528, 40929, 103498, 104047, 149674, 325845, 1094396, 1319933, 2850163, 6957867, 10539421, 10655453

Offset: 1

Author

John W. Nicholson, Jul 29 2012

Keywords

• nonn

Comments

a(n) = pi(A214756(n)).

Examples

			A214756(5) = 71, so a(5) = primepi(A214756(5)) = primepi(71) = 20.
		

Crossrefs

Cf. A000101, A104272, A214756, A001223.

Cf. A002386, A214925, A214926, A214757.

Formula

a(n) = A000217(A214756(n))

Extensions

Extension to a(28) added by John W. Nicholson, Nov 11 2013