A126051 - OEIS

%I #19 Oct 15 2024 04:30:27

%S 2,3,5,7,2,6,8,9,6,1,8,6,4,2,3,3,4,5,7,1,9,8,4,5,9,10,2,3,8,5,7,6,3,3,

%T 4,6,7,1,2,3,10,1,8,8,9,2,1,4

%N Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 11.

%F a(n) = A010880(A000043(n)). - _Ivan Panchenko_, Apr 07 2018

%t Array[Mod[MersennePrimeExponent@ #, 11] &, 45] (* _Michael De Vlieger_, Apr 10 2018 *)

%Y Cf. A000043, A010880, A126043-A126059.

%K nonn,more

%O 1,1

%A _Artur Jasinski_, Dec 17 2006

%E a(45)-a(46) from _Ivan Panchenko_, Apr 07 2018

%E a(47) from _Ivan Panchenko_, Apr 09 2018

%E a(48) from _Amiram Eldar_, Oct 14 2024