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Search: id:A060303
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| A060303 |
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Number of primes below n^2 does not exceed n times the number of primes below n. |
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+0
1
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| 0, 0, 2, 2, 6, 7, 13, 14, 14, 15, 25, 26, 39, 40, 42, 42, 58, 60, 80, 82, 83, 84, 108, 111, 111, 112, 114, 115, 144, 146, 179, 180, 182, 183, 185, 186, 225, 228, 228, 229, 270, 272, 319, 321, 324, 325, 376, 378, 378, 383, 387, 387, 439, 443, 446, 451, 455, 454
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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S. Segal, On Pi(x+1)<=Pi(x)+Pi(y). Transactions American Mathematical Society, 104 (1962), 523-527.
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FORMULA
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Table[n*PrimePi[n]-PrimePi[n^2], {n, 1, 100}]
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EXAMPLE
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Pi(100)=25, 10*Pi(10)=40, a(10)=40-25=15
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CROSSREFS
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Cf. A060199, A060208, A000720.
Adjacent sequences: A060300 A060301 A060302 this_sequence A060304 A060305 A060306
Sequence in context: A011145 A079811 A097869 this_sequence A099577 A106168 A106166
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Mar 26 2001
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