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A098745 Number of primes between prime(n)/SquareRoot(2) and prime(n)*SquareRoot(2). +0
1
1, 1, 2, 2, 2, 3, 4, 3, 5, 5, 6, 6, 7, 7, 7, 9, 10, 9, 9, 10, 12, 13, 14, 12, 14, 14, 14, 15, 15, 15, 17, 18, 20, 19, 19, 20, 18, 20, 21, 23, 24, 23, 25, 26, 25, 26, 27, 28, 29, 29, 28, 29, 29, 31, 30, 31, 33, 33, 33, 33, 32, 34, 37, 38, 38, 38, 40, 40, 40, 41, 42, 42, 42, 43, 43 (list; graph; listen)
OFFSET

1,3

COMMENT

a(n) = A000720(A001951(A000040(n))) - A000720(A049472(A000040(n))).

CROSSREFS

Sequence in context: A085755 A138304 A054860 this_sequence A029158 A071454 A039642

Adjacent sequences: A098742 A098743 A098744 this_sequence A098746 A098747 A098748

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Oct 01 2004

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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