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A274514 a(n) is the only number m such that 12^(2^m) + 1 is divisible by A273950(n). 0
1, 0, 3, 1, 2, 3, 2, 7, 5, 6, 12, 15, 6, 4, 14, 3, 11, 11, 18, 8, 12, 19, 18, 6, 12, 18, 19, 11, 21, 10, 19, 29, 8, 26, 16, 4, 38, 21, 23, 39, 14, 42, 40, 30 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..44.

PROG

(PARI) forstep(p=3, 10^15, 2, if(!Mod(p, 3)==0, if(isprime(p), o=znorder(Mod(12, p)); x=ispower(2*o); if(2^(x-1)==o, print1(x-2, ", ")))));

CROSSREFS

Cf. A273950.

Sequence in context: A305391 A165084 A029279 * A026181 A327239 A322849

Adjacent sequences:  A274511 A274512 A274513 * A274515 A274516 A274517

KEYWORD

nonn,more

AUTHOR

Arkadiusz Wesolowski, Jun 25 2016

STATUS

approved

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Last modified December 13 22:55 EST 2019. Contains 329974 sequences. (Running on oeis4.)