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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 63 |
| 3 | 221 |
| 4 | 567 |
| 5 | 1209 |
| 6 | 2279 |
| 7 | 3933 |
| 8 | 6351 |
| 9 | 9737 |
| 10 | 14319 |
| 11 | 20349 |
| 12 | 28103 |
| 13 | 37881 |
| 14 | 50007 |
| 15 | 64829 |
| 16 | 82719 |
| 17 | 104073 |
| 18 | 129311 |
| 19 | 158877 |
| 20 | 193239 |
| 21 | 232889 |
| 22 | 278343 |
| 23 | 330141 |
| 24 | 388847 |
| 25 | 455049 |
| 26 | 529359 |
| 27 | 612413 |
| 28 | 704871 |
| 29 | 807417 |
| 30 | 920759 |
| 31 | 1045629 |
| 32 | 1182783 |
| 33 | 1333001 |
[9,63,221,567,1209,2279,3933,6351,9737,14319, 20349,28103,37881,50007,64829,82719,104073,129311, 158877,193239,232889,278343,330141,388847,455049, 529359,612413,704871,807417,920759,1045629, 1182783,1333001] |