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A112129
Numbers k such that (3^j)*k + 1 are primes for j=0 to 6.
2
1197630, 20402760, 25451790, 29445850, 43830780, 44898210, 52214050, 76355370, 84234990, 88337550, 99495550, 123074070, 135740430, 155333920, 156954700, 165098290, 216858460, 218715490, 229066110, 232590400, 234109120, 236536510
OFFSET
1,1
LINKS
PROG
(PARI) for(k=1, 250000000, j=0; while(isprime((3^j)*k+1), j++); if(j>=7, print1(k, ", "))); \\ Rick L. Shepherd, Aug 29 2005
CROSSREFS
Cf. A112130.
Sequence in context: A247830 A151560 A235247 * A102336 A234479 A251166
KEYWORD
nonn
AUTHOR
Pierre CAMI, Aug 27 2005
EXTENSIONS
More terms from Rick L. Shepherd, Aug 29 2005
STATUS
approved