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A250179 Numbers n such that Phi_24(n) is prime, where Phi is the cyclotomic polynomial. 2
2, 3, 5, 6, 10, 13, 14, 15, 18, 25, 26, 27, 31, 34, 37, 39, 40, 42, 44, 46, 49, 50, 53, 59, 62, 63, 65, 68, 69, 75, 76, 77, 83, 87, 99, 100, 102, 104, 107, 110, 142, 152, 161, 166, 174, 175, 184, 187, 188, 191, 192, 199, 204, 207, 208, 213, 215, 222, 224, 227, 238, 244, 245, 247, 250, 256, 259, 263, 264, 265, 268, 274, 279, 286, 289, 303, 310, 311, 312, 314, 327, 332, 337, 339, 350, 353, 363, 366 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

MATHEMATICA

a250179[n_] := Select[Range[n], PrimeQ@Cyclotomic[24, #] &]; a250179[366] (* Michael De Vlieger, Dec 25 2014 *)

PROG

(PARI) {is(n)=isprime(polcyclo(24, n))};

for(n=1, 1000, if(is(n), print1(n, ", "))) \\ G. C. Greubel, May 20 2018

CROSSREFS

See A250177 for references.

Sequence in context: A329235 A241829 A339511 * A202823 A013931 A018429

Adjacent sequences:  A250176 A250177 A250178 * A250180 A250181 A250182

KEYWORD

nonn

AUTHOR

Eric Chen, Dec 24 2014

STATUS

approved

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Last modified September 18 20:10 EDT 2021. Contains 347534 sequences. (Running on oeis4.)