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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 22 |
| 2 | 313 |
| 3 | 3682 |
| 4 | 39109 |
| 5 | 391174 |
| 6 | 3769921 |
| 7 | 35484394 |
| 8 | 328932637 |
| 9 | 3018821806 |
| 10 | 27523981849 |
| 11 | 249859595986 |
| 12 | 2261664434485 |
| 13 | 20432811986518 |
| 14 | 184363359728497 |
| 15 | 1662082800576058 |
| 16 | 14975637634031053 |
| 17 | 134882161611414910 |
[1,22,313,3682,39109,391174,3769921,35484394, 328932637,3018821806,27523981849,249859595986, 2261664434485,20432811986518,184363359728497, 1662082800576058,14975637634031053, 134882161611414910] |