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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 9 |
| 4 | 86 |
| 5 | 33 |
| 6 | 4109 |
| 7 | 129 |
| 8 | 65622 |
| 9 | 19692 |
| 10 | 1048613 |
| 11 | 2049 |
| 12 | 2176786526 |
| 13 | 8193 |
| 14 | 268435589 |
| 15 | 1073741865 |
| 16 | 152587956247 |
| 17 | 131073 |
| 18 | 101559956692208 |
| 19 | 524289 |
| 20 | 3656158441111670 |
| 21 | 4398046511241 |
| 22 | 17592186046469 |
| 23 | 8388609 |
| 24 | 4722366482871822065758 |
[1,5,9,86,33,4109,129,65622,19692,1048613,2049, 2176786526,8193,268435589,1073741865,152587956247, 131073,101559956692208,524289,3656158441111670, 4398046511241,17592186046469,8388609, 4722366482871822065758] |