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Search: id:A094892
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| A094892 |
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a(n) is the number of primes between n*210 and (n+1)*210. |
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+0
2
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| 46, 35, 33, 32, 30, 29, 27, 31, 27, 27, 26, 25, 30, 26, 22, 27, 26, 27, 24, 24, 26, 23, 26, 26, 22, 24, 26, 27, 20, 25, 23, 25, 23, 24, 22, 23, 26, 21, 21, 24, 21, 26, 24, 23, 25, 22, 25, 20, 25, 22, 21, 22, 21, 22, 21, 18, 26, 22, 21, 26, 23, 24, 22, 19, 21, 24, 21, 17, 23
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Arbitrary long subsequences of consecutive 0's occur. a[n] is always <= 46. All values below 34 occur (see A095391); does 34?
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EXAMPLE
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a[0]=46 because there are 46 primes between 0*210 and 1*210.
a[l]=35 because there are 35 primes between 1*210 and 2*210.
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MATHEMATICA
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Table[Count[Table[PrimeQ[210*n+r], {r, 1, 210}], True], {n, 1, 100}]
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CROSSREFS
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Cf. A078859, A095389, A008364.
Sequence in context: A097927 A033978 A060958 this_sequence A165867 A058905 A098194
Adjacent sequences: A094889 A094890 A094891 this_sequence A094893 A094894 A094895
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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), Jun 16 2004
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EXTENSIONS
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Edited by Don Reble (djr(AT)nk.ca), Jun 16 2004
Examples corrected by Matthew Vandermast (ghodges14(AT)comcast.net), Jun 17, 2004
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