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A260572 Numbers n such that (n^89+1)/(n+1) is prime. 2
16, 20, 93, 195, 227, 325, 465, 758, 888, 911, 1075, 1301, 1590, 1640, 1783, 1807, 2168, 2204, 2231, 2376, 2528, 2591, 2627, 2648, 2909, 2959, 3063, 3109, 3650, 3688, 3709, 3784, 3910, 3943, 4132, 4162, 4385, 4417, 4443, 4613, 5183, 5465, 5574, 5750, 5854, 5975 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Tim Johannes Ohrtmann, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[1, 10000], PrimeQ[(#^89 + 1)/(# + 1)] &]

PROG

(PARI) for(n=1, 10000, if(isprime((n^89+1)/(n+1)), print1(n, ", ")))

(Magma) [n: n in [1..10000] |IsPrime((n^89 + 1) div (n + 1))]

CROSSREFS

Cf. A055494, A246392, A250174, A250178, A250181, A250185, A250187, A250193, A260558-A260571, A260573.

Sequence in context: A152022 A213241 A219395 * A240038 A188242 A103330

Adjacent sequences: A260569 A260570 A260571 * A260573 A260574 A260575

KEYWORD

nonn

AUTHOR

Tim Johannes Ohrtmann, Jul 29 2015

STATUS

approved

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Last modified December 9 09:46 EST 2022. Contains 358700 sequences. (Running on oeis4.)