%I #15 Oct 15 2024 04:32:20

%S 2,3,5,7,13,17,0,12,4,13,12,13,8,18,6,18,1,6,16,15,18,4,3,6,3,10,18,2,

%T 18,18,4,12,6,6,2,4,16,11,2,4,6,7,6,13,1,11,13,8

%N Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 19.

%t Array[Mod[MersennePrimeExponent@ #, 19] &, 45] (* _Michael De Vlieger_, Apr 10 2018 *)

%Y Cf. A000043, A126043-A126058.

%K nonn,more

%O 1,1

%A _Artur Jasinski_, Dec 17 2006

%E a(45)-a(47) from _Ivan Panchenko_, Apr 09 2018

%E a(48) from _Amiram Eldar_, Oct 15 2024