A061414 Numbers k such that m*2^k - 1 is prime for exactly one coefficient m in the range 0 <= m <= k.

8, 9, 19, 23, 25, 26, 34, 39, 58, 64, 66, 68, 82, 83, 84, 86, 108, 109, 117, 118, 128, 129, 130, 134, 136, 150, 151, 175, 176, 178, 179, 194, 197, 227, 231, 234, 240, 241, 248, 258, 259, 275, 276, 278, 281, 309, 315, 316, 317, 330, 331, 332, 336, 337, 339, 340

Offset: 1

Author

Patrick De Geest, May 15 2001

Keywords

• nonn

Comments

For corresponding coefficient values see A061415.

Crossrefs

Cf. A061410, A061411, A061412, A061413, A061415.

Extensions

Name edited and offset changed by Jon E. Schoenfield, Oct 26 2019