A296244 Odd numbers k such that A007733(k) is even but 2^x == -1 (mod k) is insoluble.

15, 21, 35, 39, 45, 51, 55, 63, 69, 75, 77, 85, 87, 91, 93, 95, 105, 111, 115, 117, 119, 123, 133, 135, 141, 143, 147, 153, 155, 159, 165, 175, 183, 187, 189, 195, 203, 207, 213, 215, 219, 221, 225, 231, 235, 237, 245, 247, 253, 255, 259, 261, 267, 273, 275, 279, 285, 287

Offset

1,1

Links

Table of n, a(n) for n=1..58.

Crossrefs

Set difference of A296243 and A014657.

Cf. A002326, A007733.

Sequence in context: A090999 A123912 A346812 * A309005 A225916 A128279

Adjacent sequences: A296241 A296242 A296243 * A296245 A296246 A296247

Keyword

nonn

Author

Max Alekseyev, Dec 09 2017

Status

approved