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%I #12 Apr 09 2018 13:01:30
%S 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,
%T 5,3,2,5,2,1,4,5,1,2,2,4,1
%N Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 7.
%F a(n) = A010876(A000043(n)). - _Ivan Panchenko_, Apr 07 2018
%Y Cf. A126043-A126059.
%K nonn
%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
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