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A102326 Primes p such that the largest prime divisor of p^4+1 is less than p. +0
2
10181, 14051, 18979, 25253, 57173, 58013, 60101, 62497, 65951, 66541, 69457, 75931, 82241, 82261, 84229, 87721, 88339, 88819, 91499, 92333, 95917, 99523, 105557, 107747, 109229, 118493, 118927, 137339, 146291, 155399, 157019 (list; graph; listen)
OFFSET

1,1

EXAMPLE

p = 10181, 1+p^4 = 10743894862923122 = {2.17.1657.4657.5113.8009, so the largest prime factor is 8009<p = 10181.

MATHEMATICA

<<NumberTheory`NumberTheoryFunctions` Select[Prime[Range[15000]], Max[PrimeFactorList[1 + #^4]] < # &] (Ray Chandler, Jan 08 2005)

CROSSREFS

Cf. A000040, A065091, A073501.

Sequence in context: A153139 A128878 A050267 this_sequence A105582 A100968 A031987

Adjacent sequences: A102323 A102324 A102325 this_sequence A102327 A102328 A102329

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Jan 05 2005

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jan 08 2005

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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