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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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1
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3, 8, 15, 35, 39, 45, 50, 65, 92, 99, 122, 140, 164, 167, 170, 198, 237, 284, 287, 297, 339, 354, 408, 435, 515, 522, 552, 582, 594, 650, 668, 708, 725, 737, 753, 830, 1010, 1068, 1098, 1128, 1253, 1295, 1373, 1424, 1502, 1548, 1553, 1599, 1704, 1779, 1817
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 3^3 +- 4^2 -> (11,43) Primes,
167^3 +- 168^2 -> 4657463 +- 28224 -> Primes
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MATHEMATICA
| Select[Range[900], PrimeQ[ #^3-(#+1)^2]&&PrimeQ[ #^3+(#+1)^2]&]
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PROG
| (MAGMA) [n: n in [2..500] | IsPrime(n^3-(n+1)^2)and IsPrime(n^3 +(n+1)^2)] [From Vincenzo Librandi, Nov 24 2010]
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CROSSREFS
| Sequence in context: A090741 A032234 A032255 * A176433 A132810 A032159
Adjacent sequences: A137472 A137473 A137474 * A137476 A137477 A137478
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KEYWORD
| nonn
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AUTHOR
| Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 21 2008
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EXTENSIONS
| More terms from Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Mar 26 2010
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