Not expressible as x^3+-y^2

[Pfoertner, Hugo]

Seqfans,

after checking with another program I think 16 was missing in my first
version,
extended:
  6 14 16 21 27 29 32 34 42 46 51 58 59 62 66 69 70 75 77 78 84 85 86 88 90
93
 96 102 103 110 111 114 115 123 125 130 133 137 140 144 149 157 158 160 162
165
166 173 176 178 179 181 182 183 187 194 201 202 203 205 209 210 211 213 214
218 219

Still do not know if searching up to 2^63 is sufficient. At least none of
Ralf's
numbers is in the sequence ;-)

Hugo