A077498 - OEIS
2, 3, 5, 17, 29, 113, 197, 257, 449, 1373, 3137, 50177, 65537, 114689, 268913, 470597, 614657, 1075649, 3294173, 7340033, 9834497, 210827009, 275365889, 359661569, 469762049, 1129900997, 1438646273, 1927561217, 7909306973, 52613349377
EXAMPLE
197 = 2^2*7^2 + 1 is a member.
EXTENSIONS
Corrected and extended by Ray Chandler, Aug 02 2003