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A086681 Number of primes < 8^n. 0
0, 4, 18, 97, 564, 3512, 23000, 155611, 1077871, 7603553, 54400028, 393615806, 2874398515, 21151907950, 156661034233 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

MATHEMATICA

PrimePi/@(8^Range[0, 14])  (* From Harvey P. Dale, Mar 13 2011 *)

CROSSREFS

Sequence in context: A001563 A094304 A094258 * A054139 A020072 A020027

Adjacent sequences:  A086678 A086679 A086680 * A086682 A086683 A086684

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Jul 28 2003

EXTENSIONS

More terms from Harvey P. Dale, Mar 13 2011.

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Last modified February 15 14:37 EST 2012. Contains 205822 sequences.