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%I #11 Apr 09 2018 09:29:13
%S 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,
%T 7,5,5,5,5,1,7,7,11,1,5,11,1,5
%N Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 12.
%F a(n) = A010881(A000043(n)). - _Ivan Panchenko_, Apr 07 2018
%Y Cf. A126043-A126059.
%K nonn,more
%O 1,1
%A _Artur Jasinski_, Dec 17 2006
%E a(45)-a(47) from _Ivan Panchenko_, Apr 08 2018
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