A138865 Last 3 digits of n-th Mersenne prime A000668(n).

3, 7, 31, 127, 191, 71, 287, 647, 951, 111, 127, 727, 151, 127, 87, 7, 351, 71, 991, 607, 111, 551, 191, 471, 751, 511, 671, 207, 7, 311, 447, 887, 591, 527, 711, 151, 271, 791, 71, 47, 407, 247, 871, 871, 927, 751, 511

Offset: 1

Author

Omar E. Pol, Apr 02 2008

Keywords

• base
• nonn

Links

• L. C. Noll, Mersenne Prime Digits and Names.
• Omar E. Pol, Los primos de Mersenne

Crossrefs

Cf. A000668, A080173, A104511, A138862, A138863, A138864, A138866.

Programs

Mathematica

Array[Mod[2^MersennePrimeExponent[#] - 1, 1000] &, 45] (* Michael De Vlieger, Aug 05 2018 *)

Extensions

a(40)-a(47) from Ivan Panchenko, Apr 03 2018