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Search: id:A137475
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| A137475 |
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Positive numbers n such that n^3 +- (n+1)^2 are primes. |
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+0
1
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| 1, 3, 8, 15, 35, 39, 45, 50, 65, 92, 99, 122, 140
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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3^3 +- 4^2 -> (11,43) Primes,
167^3 +- 168^2 -> 4657463 +- 28224 -> Primes
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MATHEMATICA
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Select[Range[900], PrimeQ[ #^3-(#+1)^2]&&PrimeQ[ #^3+(#+1)^2]&]
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CROSSREFS
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Sequence in context: A090741 A032234 A032255 this_sequence A032159 A032064 A151397
Adjacent sequences: A137472 A137473 A137474 this_sequence A137476 A137477 A137478
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 21 2008
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