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Search: id:A154276
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| A154276 |
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Primes of the form 81n^2-72n+17 |
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+0
5
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| 17, 197, 30977, 52901, 80657, 215297, 287297, 414737, 462401, 512657, 739601, 902501, 972197, 1008017, 1196837, 1401857, 1623077, 2496401, 2611457, 3422501, 3763601, 4343057, 4494401, 4726277, 4884101, 5456897, 5541317, 6330257
(list; graph; listen)
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OFFSET
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1,1
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MAPLE
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a := proc (n) if isprime(81*n^2-72*n+17) = true then 81*n^2-72*n+17 else end if end proc: seq(a(n), n = 0 .. 300); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 20 2009]
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MATHEMATICA
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lst={}; Do[If[PrimeQ[p=81*n^2-72*n+17], AppendTo[lst, p]], {n, 0, 7!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 11 2009]
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CROSSREFS
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Cf. A154277
Sequence in context: A069361 A130817 A055432 this_sequence A021379 A017932 A125429
Adjacent sequences: A154273 A154274 A154275 this_sequence A154277 A154278 A154279
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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 06 2009
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EXTENSIONS
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Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 20 2009
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