login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A127437 Primes p such that 2^x = 3 (mod p) has a solution. 3
2, 5, 11, 13, 19, 23, 29, 37, 53, 59, 61, 67, 83, 101, 107, 131, 139, 149, 163, 173, 179, 181, 197, 211, 227, 269, 293, 317, 347, 349, 373, 379, 389, 419, 421, 443, 461, 467, 491, 509, 523, 541, 547, 557, 563, 587, 613, 619, 653, 659, 661, 677, 701, 709, 757, 773, 787, 797, 821, 827, 829, 853, 859, 877, 883, 907, 941, 947 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Potential prime divisors of solutions to 2^m = 3 (mod m) (see A050259).

Minimal nonnegative solutions to 2^x = 3 (mod a(n)) are given in A127438.

LINKS

Table of n, a(n) for n=1..68.

PROG

(PARI) forprime(p=5, 1000, g=znprimroot(p); u=znlog(Mod(2, p), g); v=znlog(Mod(3, p), g); if( v%u==0, print1(p, ", "); ))

CROSSREFS

Cf. A050259, A123988 (complement in the primes)

Sequence in context: A194854 A045360 A001915 * A084792 A109640 A191048

Adjacent sequences:  A127434 A127435 A127436 * A127438 A127439 A127440

KEYWORD

nonn

AUTHOR

Max Alekseyev, Jan 14 2007

EXTENSIONS

Corrected by Max Alekseyev, Jun 08 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified January 18 20:35 EST 2018. Contains 297865 sequences.