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A141863
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Primes of the form n/(2*(p(n-1)-p(n-2))), where p(n)=n-th prime.
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0
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3, 2, 3, 7, 5, 2, 5, 11, 17, 7, 17, 59, 13, 17, 41, 23, 29, 61, 47, 199, 101, 71, 41, 23, 263, 269, 137, 139, 97, 59, 101, 103, 67, 173, 353, 127, 409, 139, 419, 449, 229, 163, 199, 103, 223, 229, 349, 181, 733, 751, 853, 883, 109, 197, 1033, 347, 521, 211, 137, 1109, 373
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| n=12: 12/(2*(p(12-1)-p(12-2)))=12/(2*(31-29))=3=a(1).
n=16: 16/(2*(p(16-1)-p(16-2)))=16/(2*(47-43))=2=a(2).
n=24: 24/(2*(p(24-1)-p(24-2)))=24/(2*(83-79))=3=a(3).
n=28: 28/(2*(p(28-1)-p(28-2)))=28/(2*(103-101))=7=a(4).
n=40: 40/(2*(p(40-1)-p(40-2)))=40/(2*(167-163))=5=a(5).
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CROSSREFS
| Cf. A000040, A001223.
Sequence in context: A084388 A136389 A001368 * A071010 A171721 A073341
Adjacent sequences: A141860 A141861 A141862 * A141864 A141865 A141866
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KEYWORD
| nonn
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AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Sep 15 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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