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Search: id:A133160
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| A133160 |
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Numbers n such that n^3 + n + 91 is prime. |
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2
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| 2, 6, 9, 11, 12, 17, 20, 23, 27, 29, 33, 38, 48, 50, 53, 59, 62, 68, 71, 75, 81, 87, 92, 93, 101, 114, 123, 129, 137, 152, 153, 170, 171, 176, 186, 197, 198, 222, 225, 246, 248, 254, 258, 263, 270, 284, 288, 293, 296, 297, 303, 306, 309, 314, 321, 324, 332, 335
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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If n=2 then n^3 + n + 91 = 101 (prime).
If n=93 then n^3 + n + 91 = 804541 (prime)
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MAPLE
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a:=proc(n) if isprime(n^3+n+91)=true then n else end if end proc: seq(a(n), n =1..300); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 08 2008
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MATHEMATICA
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Select[Range[400], PrimeQ[ #^3 + # + 91] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Dec 24 2007
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CROSSREFS
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Cf. A002837.
Sequence in context: A071814 A066586 A146974 this_sequence A128906 A139639 A045038
Adjacent sequences: A133157 A133158 A133159 this_sequence A133161 A133162 A133163
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KEYWORD
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nonn
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Dec 17 2007
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Dec 24 2007
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