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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 11 |
| 3 | 175 |
| 4 | 4317 |
| 5 | 142561 |
| 6 | 5929513 |
| 7 | 297901899 |
| 8 | 17557448681 |
| 9 | 1188110627137 |
| 10 | 90804918357261 |
| 11 | 7737033497254579 |
| 12 | 727253150819898541 |
| 13 | 74760871323339663489 |
| 14 | 8344094871249960257009 |
| 15 | 1004872166403751985971291 |
| 16 | 129883465213311163328142417 |
[1,1,11,175,4317,142561,5929513,297901899, 17557448681,1188110627137,90804918357261, 7737033497254579,727253150819898541, 74760871323339663489,8344094871249960257009, 1004872166403751985971291, 129883465213311163328142417] |