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A110912
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Numbers n such that 23*n^2 - 36 is prime.
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0
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1, 7, 13, 31, 43, 55, 97, 101, 113, 119, 133, 139, 151, 161, 167, 185, 199, 211, 221, 227, 239, 265, 277, 283, 295, 305, 323, 353, 371, 385, 403, 407, 427, 451, 461, 463, 475, 515, 517, 539, 557, 559, 581, 613, 617, 641, 661, 685, 689, 697, 713, 767, 769, 773
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| If n=133 then (23*n^2) - 36 = 406811 (prime).
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MATHEMATICA
| Select[Range[800], PrimeQ[23*#^2 - 36] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Feb 28 2006
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PROG
| (MAGMA) [n: n in [0..1000]| IsPrime(23*n^2- 36)]; // From Vincenzo Librandi, Feb 03 2011
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CROSSREFS
| Sequence in context: A023243 A087196 A074963 * A085104 A162652 A181141
Adjacent sequences: A110909 A110910 A110911 * A110913 A110914 A110915
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KEYWORD
| nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Oct 03 2005
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EXTENSIONS
| More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Feb 28 2006
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