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A055730
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Number of primes <= 5^n.
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0
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0, 3, 9, 30, 114, 445, 1821, 7671, 33118, 145713, 650133, 2934858, 13375865, 61444585, 284140656, 1321453490, 6175961983, 28988040005, 136575061279, 645620925545, 3061129684411, 14552990145243, 69354801708586, 331251325552977, 1585299642009257, 7600886353341754, 36504944044424979, 175596829407110803, 845879609035799508, 4080206964520522386, 19705939422430380037, 95283357078617397618, 461221032128956299315
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OFFSET
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0,2
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LINKS
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FORMULA
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MATHEMATICA
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Table[PrimePi[5^n], {n, 0, 19}]
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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