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A101445
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Numbers n such that n is the largest prime factor of 1 + prime(n).
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OFFSET
| 1,1
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EXAMPLE
| 3 = the largest factor of 1 + prime(3) = 6, so 3 belongs to the sequence.
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MATHEMATICA
| Select[ Prime[ Range[ 10^7]], Transpose[ FactorInteger[ Prime[ # ] + 1]][[1, -1]] == # &]
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CROSSREFS
| Sequence in context: A115640 A197635 A171161 * A128668 A038537 A120313
Adjacent sequences: A101442 A101443 A101444 * A101446 A101447 A101448
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KEYWORD
| nonn
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AUTHOR
| Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jan 18 2005
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EXTENSIONS
| No more terms below the 10^7-th prime or 179424673. - Robert G. Wilson v Jan 21 2005.
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