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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 127 |
| 3 | 864 |
| 4 | 17930 |
| 5 | 295407 |
| 6 | 5558665 |
| 7 | 104819165 |
| 8 | 1992248544 |
| 9 | 38074261228 |
| 10 | 728095163211 |
| 11 | 13939203627469 |
| 12 | 266922192325475 |
| 13 | 5112200956467065 |
| 14 | 97917633017720051 |
| 15 | 1875541645351871211 |
| 16 | 35925207100912996734 |
[1,127,864,17930,295407,5558665,104819165, 1992248544,38074261228,728095163211, 13939203627469,266922192325475,5112200956467065, 97917633017720051,1875541645351871211, 35925207100912996734] |