A140364 Values of e such that A139767 is 2.

7, 9, 17, 23, 25, 27, 39, 41, 43, 47, 55, 71, 79, 81, 87, 95, 97, 103, 109, 111, 113, 121, 125, 137, 143, 157, 159, 167, 169, 183, 187, 191, 193, 199, 209, 229, 239, 243, 247, 251, 263, 271, 277, 281, 283, 289, 291, 295, 303, 307, 311, 313, 319, 323, 335, 353, 359, 361, 367

Offset: 1

Author

N. J. A. Sloane, Jun 16 2008

Keywords

• nonn

Comments

Can these numbers be described in any other way?

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..292