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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 14 |
| 3 | 15 |
| 4 | 434 |
| 5 | 449 |
| 6 | 6271 |
| 7 | 6720 |
| 8 | 194431 |
| 9 | 201151 |
| 10 | 2809394 |
| 11 | 3010545 |
| 12 | 87104654 |
| 13 | 90115199 |
| 14 | 1258602241 |
| 15 | 1348717440 |
| 16 | 39022690561 |
| 17 | 40371408001 |
| 18 | 563850994574 |
| 19 | 604222402575 |
| 20 | 17482078266674 |
| 21 | 18086300669249 |
| 22 | 252603986966911 |
| 23 | 270690287636160 |
| 24 | 7831932040779391 |
[1,1,14,15,434,449,6271,6720,194431,201151, 2809394,3010545,87104654,90115199,1258602241, 1348717440,39022690561,40371408001,563850994574, 604222402575,17482078266674,18086300669249, 252603986966911,270690287636160,7831932040779391] |