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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 17 |
| 3 | 130 |
| 4 | 595 |
| 5 | 4073 |
| 6 | 24459 |
| 7 | 167500 |
| 8 | 1117353 |
| 9 | 7829307 |
| 10 | 54906873 |
| 11 | 393635415 |
| 12 | 2840684509 |
| 13 | 20748878557 |
| 14 | 152583436237 |
| 15 | 1130904562550 |
| 16 | 8430522519235 |
| 17 | 63205880187653 |
| 18 | 476121899816163 |
| 19 | 3602456244620557 |
| 20 | 27363055273700095 |
[1,10,17,130,595,4073,24459,167500,1117353, 7829307,54906873,393635415,2840684509,20748878557, 152583436237,1130904562550,8430522519235, 63205880187653,476121899816163,3602456244620557, 27363055273700095] |