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A192319
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Numbers k such that the half-open interval (k-5*sqrt(sqrt(k)), k] does not contain primes.
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0
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OFFSET
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1,2
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COMMENTS
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a(9) = 31468 is probably the last term. Any further terms must be greater than 1.5 * 10^18. [Charles R Greathouse IV, Jun 27 2011]
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LINKS
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MAPLE
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isA192319 := proc(n) phigh := n ; plow := ceil(n-5*root[4](n))-1 ; numtheory[pi](phigh)-numtheory[pi](plow) = 0 ; end proc:
for n from 1 do if isA192319(n) then print(n); end if; end do: # R. J. Mathar, Jul 10 2011
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PROG
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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