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| n | a(n) |
|---|---|
| 0 | 15 |
| 1 | 16 |
| 2 | 159 |
| 3 | 175 |
| 4 | 334 |
| 5 | 509 |
| 6 | 1352 |
| 7 | 1861 |
| 8 | 14379 |
| 9 | 59377 |
| 10 | 133133 |
| 11 | 325643 |
| 12 | 784419 |
| 13 | 3463319 |
| 14 | 25027652 |
| 15 | 28490971 |
| 16 | 82009594 |
| 17 | 110500565 |
| 18 | 192510159 |
| 19 | 303010724 |
| 20 | 2919606675 |
| 21 | 3222617399 |
| 22 | 99598128645 |
| 23 | 102820746044 |
[15,16,159,175,334,509,1352,1861,14379,59377, 133133,325643,784419,3463319,25027652,28490971, 82009594,110500565,192510159,303010724,2919606675, 3222617399,99598128645,102820746044] |