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%I #10 Aug 23 2018 16:55:34
%S 3,7,31,127,191,71,287,647,951,111,127,727,151,127,87,7,351,71,991,
%T 607,111,551,191,471,751,511,671,207,7,311,447,887,591,527,711,151,
%U 271,791,71,47,407,247,871,871,927,751,511
%N Last 3 digits of n-th Mersenne prime A000668(n).
%H L. C. Noll, <a href="http://www.isthe.com/chongo/tech/math/prime/mersenne.html">Mersenne Prime Digits and Names</a>.
%H Omar E. Pol, <a href="http://www.polprimos.com/#Los%20primos%20de%20Mersenne">Los primos de Mersenne</a>
%t Array[Mod[2^MersennePrimeExponent[#] - 1, 1000] &, 45] (* _Michael De Vlieger_, Aug 05 2018 *)
%Y Cf. A000668, A080173, A104511, A138862, A138863, A138864, A138866.
%K base,nonn
%O 1,1
%A _Omar E. Pol_, Apr 02 2008
%E a(40)-a(47) from _Ivan Panchenko_, Apr 03 2018
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