A126052 Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 12.

2, 3, 5, 7, 1, 5, 7, 7, 1, 5, 11, 7, 5, 7, 7, 7, 1, 1, 5, 7, 5, 5, 5, 5, 5, 1, 1, 11, 7, 1, 7, 11, 5, 7, 5, 5, 5, 5, 1, 7, 7, 11, 1, 5, 11, 1, 5, 5

Offset

1,1

Links

Table of n, a(n) for n=1..48.

Formula

a(n) = A010881(A000043(n)). - Ivan Panchenko, Apr 07 2018

Mathematica

Mod[MersennePrimeExponent[Range[48]], 12] (* Amiram Eldar, Oct 14 2024 *)

Crossrefs

Cf. A000043, A010881, A126043-A126059.

Sequence in context: A053666 A101987 A178743 * A321128 A130138 A171855

Adjacent sequences: A126049 A126050 A126051 * A126053 A126054 A126055

Keyword

nonn,more

Author

Artur Jasinski, Dec 17 2006

Extensions

a(45)-a(47) from Ivan Panchenko, Apr 08 2018

a(48) from Amiram Eldar, Oct 14 2024

Status

approved