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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 15 |
| 3 | 322 |
| 4 | 167 |
| 5 | 6444 |
| 6 | 32183 |
| 7 | 7306 |
| 8 | 225418 |
| 9 | 6551032 |
| 10 | 683405939 |
| 11 | 7074698775 |
| 12 | 26331754107 |
| 13 | 844494314469 |
| 14 | 11303028458639 |
| 15 | 251188643150958 |
| 16 | 93364101391902 |
| 17 | 16114920282762613 |
| 18 | 239390020079624346 |
| 19 | 191165654339590395 |
[1,15,322,167,6444,32183,7306,225418,6551032, 683405939,7074698775,26331754107,844494314469, 11303028458639,251188643150958,93364101391902, 16114920282762613,239390020079624346, 191165654339590395] |