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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 22 |
| 2 | 969 |
| 3 | 21340 |
| 4 | 939929 |
| 5 | 20699778 |
| 6 | 911730161 |
| 7 | 20078763320 |
| 8 | 884377316241 |
| 9 | 19476379720622 |
| 10 | 857845085023609 |
| 11 | 18892068250240020 |
| 12 | 832108848095584489 |
| 13 | 18325286726353098778 |
| 14 | 807144724807631930721 |
| 15 | 17775509232494255574640 |
[1,22,969,21340,939929,20699778,911730161, 20078763320,884377316241,19476379720622, 857845085023609,18892068250240020, 832108848095584489,18325286726353098778, 807144724807631930721,17775509232494255574640] |