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A100820
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Number of odd numbers between prime(n) and prime(n+1).
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0
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0, 0, 0, 1, 0, 1, 0, 1, 2, 0, 2, 1, 0, 1, 2, 2, 0, 2, 1, 0, 2, 1, 2, 3, 1, 0, 1, 0, 1, 6, 1, 2, 0, 4, 0, 2, 2, 1, 2, 2, 0, 4, 0, 1, 0, 5, 5, 1, 0, 1, 2, 0, 4, 2, 2, 2, 0, 2, 1, 0, 4, 6, 1, 0, 1, 6, 2, 4, 0, 1, 2, 3, 2, 2, 1, 2, 3, 1, 3, 4, 0, 4, 0, 2, 1, 2, 3, 1, 0, 1, 5, 3, 1, 3, 1, 2, 5, 0, 8, 2, 4, 2, 2, 0, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,9
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EXAMPLE
| a(2)=0 because between 3 and 5 there are no odd numbers.
a(3)=0 because between 5 and 7 there are no odd numbers.
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MATHEMATICA
| Table[Floor[Max[(Prime[n + 1] - Prime[n])/2 - 1, 0] ], {n, 120}] (Ray Chandler)
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CROSSREFS
| Sequence in context: A194305 A036580 A101674 * A038760 A143946 A035394
Adjacent sequences: A100817 A100818 A100819 * A100821 A100822 A100823
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KEYWORD
| easy,nonn
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AUTHOR
| Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Jan 06 2005
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EXTENSIONS
| Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jan 09 2005
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