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A115835
Square root of pi(A064523(n)).
1
0, 2, 3, 5, 689, 2015, 2783, 3592, 3919, 3941, 5156, 5902, 6063, 8054, 15683, 16310, 28239, 29901, 40328, 55221, 60246, 74982, 98883, 129023, 312400, 328667, 351586, 815526, 911097, 1018921, 1054125
OFFSET
1,2
COMMENTS
Cf. A064517 pi(n) is a square, A064523 pi(n^2) is a square, A000720 pi(n), the number of primes <= n.
MATHEMATICA
Sqrt@PrimePi[{ * list of entries in A064523 *) }^2] - Robert G. Wilson v, Feb 03 2006
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Feb 01 2006
EXTENSIONS
a(20) from Robert G. Wilson v, Feb 03 2006
Added missing terms 28239, 29901, 40328 and a(24)-a(27) from Donovan Johnson, May 30 2010
a(28)-a(31) from Chai Wah Wu, Aug 27 2019
STATUS
approved