A231917 Numbers n such that 16*n^2 + 10*n + 1 divides 2^n - 1.

0, 11, 75, 156, 179, 215, 216, 239, 371, 431, 504, 551, 564, 624, 651, 711, 936, 999, 1040, 1076, 1296, 1304, 1416, 1680, 1884, 1911, 2079, 2324, 2615, 2696, 3176, 3224, 3236, 3500, 3696, 3780, 3879, 4040, 4044, 4215, 4340, 4368, 4431, 4599, 4604, 4859, 5019

Offset: 1

Author

Arkadiusz Wesolowski, Nov 15 2013

Keywords

• nonn

Comments

The prime numbers of this sequence are in A231916.

Links

• Chris Caldwell, The Prime Glossary, Mersenne number

Crossrefs

Subsequence of A081858. Supersequence of A231916.

Cf. A000225, A028993, A231918.

Programs

Mathematica

Prepend[Select[Range[5019], PowerMod[2, #, 16*#^2 + 10*# + 1] == 1 &], 0]