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| n | a(n) |
|---|---|
| 0 | 5 |
| 1 | 33 |
| 2 | 257 |
| 3 | 2049 |
| 4 | 16385 |
| 5 | 131073 |
| 6 | 1048577 |
| 7 | 8388609 |
| 8 | 67108865 |
| 9 | 536870913 |
| 10 | 4294967297 |
| 11 | 34359738369 |
| 12 | 274877906945 |
| 13 | 2199023255553 |
| 14 | 17592186044417 |
| 15 | 140737488355329 |
| 16 | 1125899906842625 |
| 17 | 9007199254740993 |
| 18 | 72057594037927937 |
[5,33,257,2049,16385,131073,1048577,8388609, 67108865,536870913,4294967297,34359738369, 274877906945,2199023255553,17592186044417, 140737488355329,1125899906842625,9007199254740993, 72057594037927937] |