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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 81 |
| 4 | 826 |
| 5 | 9766 |
| 6 | 141448 |
| 7 | 2371173 |
| 8 | 46285454 |
| 9 | 1025108476 |
| 10 | 25583455958 |
| 11 | 709014239914 |
| 12 | 21645251877538 |
| 13 | 721074846998772 |
| 14 | 26036416881319860 |
| 15 | 1012400617533469985 |
| 16 | 42173042024213765280 |
| 17 | 1873237518724869171647 |
| 18 | 88367918629612594749582 |
| 19 | 4411615292876287372479856 |
[1,10,81,826,9766,141448,2371173,46285454, 1025108476,25583455958,709014239914, 21645251877538,721074846998772,26036416881319860, 1012400617533469985,42173042024213765280, 1873237518724869171647,88367918629612594749582, 4411615292876287372479856] |