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A141652
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Primes of the form n/(p(n)-p(n-1)), where p(n)=n-th prime.
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0
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2, 2, 3, 2, 7, 5, 7, 17, 23, 29, 19, 41, 11, 17, 37, 41, 31, 101, 17, 53, 113, 59, 41, 127, 43, 13, 11, 139, 29, 157, 89, 61, 37, 103, 109, 113, 239, 251, 137, 101, 61, 307, 313, 337, 373, 127, 101, 137, 419, 113, 457, 461, 239, 479, 167, 103, 181, 139, 47, 193, 101, 107, 653
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Entries may be repeated and are shown in order of increasing generator n.
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EXAMPLE
| n=2: 2/(p(2)-p(2-1))=2/(3-2)=2=a(1).
n=4: 4/(p(4)-p(4-1))=4/(7-5)=2=a(2).
n=6: 6/(p(6)-p(6-1))=6/(13-11)=3=a(3).
n=12: 12/(p(12)-p(12-1))=12/(37-31)=2=a(4).
n=14: 14/(p(14)-p(14-1))=14/(43-41)=7=a(5).
n=20: 20/(p(20)-p(20-1))=20/(71-67)=5=a(6).
n=28: 28/(p(28)-p(28-1))=28/(107-103)=7=a(7),
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CROSSREFS
| Cf. A000040.
Sequence in context: A015996 A092976 A084705 * A117754 A015999 A177047
Adjacent sequences: A141649 A141650 A141651 * A141653 A141654 A141655
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KEYWORD
| nonn
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AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Sep 13 2008
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EXTENSIONS
| Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 26 2008
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