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A259631
Numbers k such that the Phi_3(10^10000+k) is prime, where Phi is a cyclic polynomial.
1
8929, 45937, 49256, 50060, 76204, 76855, 125708, 127919, 137050, 137335, 137944, 147466, 163822, 193939, 267131, 295882, 299977, 312610, 322255, 322499, 322988, 370763, 403085, 436060, 458119, 571253, 574597, 601558, 610697, 626978, 627820, 630109, 647039
OFFSET
1,1
COMMENTS
a(53) > 10^6.
LINKS
MATHEMATICA
Select[Range[1, 10^6], PrimeQ[(10^10000 + #)^2 + (10^10000 + #) + 1] &]
PROG
(PARI) is(k)=ispseudoprime(subst('x^2+'x+1, 'x, 10^10000+k)) \\ Charles R Greathouse IV, Aug 05 2015
(PFGW) ABC2 (10^10000+$a)^2 + (10^10000+$a) + 1
a: from 1 to 10000
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert Price, Aug 05 2015
STATUS
approved