login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A126047 Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 7. 0
2, 3, 5, 0, 6, 3, 5, 3, 5, 5, 2, 1, 3, 5, 5, 5, 6, 4, 4, 6, 1, 1, 6, 1, 1, 4, 5, 3, 1, 1, 1, 6, 1, 6, 5, 3, 2, 5, 2, 1, 4, 5, 1, 2, 2, 4, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..47.

FORMULA

a(n) = A010876(A000043(n)). - Ivan Panchenko, Apr 07 2018

CROSSREFS

Cf. A126043-A126059.

Sequence in context: A082118 A079344 A096535 * A023049 A240979 A171034

Adjacent sequences:  A126044 A126045 A126046 * A126048 A126049 A126050

KEYWORD

nonn

AUTHOR

Artur Jasinski, Dec 17 2006

EXTENSIONS

a(45)-a(46) from Ivan Panchenko, Apr 07 2018

a(47) from Ivan Panchenko, Apr 09 2018

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 29 04:57 EST 2020. Contains 331335 sequences. (Running on oeis4.)