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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 (list; graph; refs; listen; history; text; internal format)
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.

LINKS

Table of n, a(n) for n=1..31.

MATHEMATICA

Sqrt@PrimePi[{ * list of entries in A064523 *) }^2] - Robert G. Wilson v, Feb 03 2006

CROSSREFS

Cf. A000720, A064517, A064523.

Sequence in context: A303371 A046474 A056146 * A089678 A072712 A046476

Adjacent sequences:  A115832 A115833 A115834 * A115836 A115837 A115838

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

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Last modified October 22 18:05 EDT 2019. Contains 328319 sequences. (Running on oeis4.)