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A214925
Number of primes <= A214757(n)
4
5, 5, 5, 10, 25, 31, 104, 159, 190, 219, 1186, 1832, 2227, 3388, 14358, 30804, 31547, 40935, 103522, 104072, 149690, 325853, 1094426, 1319950, 2850175, 6957880, 10539433, 10655464
OFFSET
1,1
FORMULA
a(n) = pi(A214757(n)) = A000217(A214757(n)).
EXAMPLE
A214757(4) = 29, so a(4) = primepi(A214757(4)) = primepi(29) = 10.
KEYWORD
nonn
AUTHOR
John W. Nicholson, Aug 06 2012
EXTENSIONS
Extension to a(28) added by John W. Nicholson, Nov 11 2013
STATUS
approved