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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 87 |
| 3 | 97 |
| 4 | 117 |
| 5 | 153 |
| 6 | 225 |
| 7 | 361 |
| 8 | 633 |
| 9 | 1161 |
| 10 | 2217 |
| 11 | 4297 |
| 12 | 8457 |
| 13 | 16713 |
| 14 | 33225 |
| 15 | 66121 |
| 16 | 131913 |
| 17 | 263241 |
| 18 | 525897 |
| 19 | 1050697 |
| 20 | 2100297 |
| 21 | 4198473 |
| 22 | 8394825 |
| 23 | 16785481 |
| 24 | 33566793 |
| 25 | 67125321 |
| 26 | 134242377 |
| 27 | 268468297 |
| 28 | 536920137 |
| 29 | 1073807433 |
| 30 | 2147582025 |
| 31 | 4295098441 |
[81,87,97,117,153,225,361,633,1161,2217,4297,8457, 16713,33225,66121,131913,263241,525897,1050697, 2100297,4198473,8394825,16785481,33566793, 67125321,134242377,268468297,536920137,1073807433, 2147582025,4295098441] |