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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Jinyuan Wang, Table of n, a(n) for n = 1..1000

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

Adjacent sequences:  A112126 A112127 A112128 * A112130 A112131 A112132

KEYWORD

nonn

AUTHOR

Pierre CAMI, Aug 27 2005

EXTENSIONS

More terms from Rick L. Shepherd, Aug 29 2005

STATUS

approved

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Last modified July 3 16:27 EDT 2022. Contains 355055 sequences. (Running on oeis4.)