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Search: id:A154510
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| A154510 |
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Primes of the form 648n^2+72n+1 |
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+0
7
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| 10657, 16561, 23761, 32257, 65521, 79201, 287281, 474337, 510049, 624961, 665857, 708049, 988417, 1039681, 1092241, 1146097, 1315441, 1374481, 1755937, 1893457, 2036161, 2259937
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OFFSET
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1,1
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FORMULA
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a(n)=648n^2+72n+1
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EXAMPLE
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For n=4, a(4)=10657; n=10, a(10)=65521
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MATHEMATICA
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lst={}; Do[p=648*n^2+72*n+1; If[PrimeQ[p], AppendTo[lst, p]], {n, 0, 5*5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 27 2009]
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CROSSREFS
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Cf. A154511
Sequence in context: A013817 A013904 A138254 this_sequence A157326 A006006 A151411
Adjacent sequences: A154507 A154508 A154509 this_sequence A154511 A154512 A154513
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KEYWORD
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nonn
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 11 2009
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