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| n | a(n) |
|---|---|
| 0 | 10 |
| 1 | 55 |
| 2 | 385 |
| 3 | 3025 |
| 4 | 25333 |
| 5 | 220825 |
| 6 | 1978405 |
| 7 | 18080425 |
| 8 | 167731333 |
| 9 | 1574304985 |
| 10 | 14914341925 |
| 11 | 142364319625 |
| 12 | 1367428536133 |
| 13 | 13202860761145 |
| 14 | 128037802953445 |
| 15 | 1246324856379625 |
| 16 | 12170706132009733 |
| 17 | 119179318935377305 |
| 18 | 1169842891165484965 |
| 19 | 11506994510201252425 |
[10,55,385,3025,25333,220825,1978405,18080425, 167731333,1574304985,14914341925,142364319625, 1367428536133,13202860761145,128037802953445, 1246324856379625,12170706132009733, 119179318935377305,1169842891165484965, 11506994510201252425] |