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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 66 |
| 4 | 91 |
| 5 | 55 |
| 6 | 21 |
| 7 | 46 |
| 8 | 1362 |
| 9 | 1654 |
| 10 | 1419 |
| 11 | 574 |
| 12 | 6463 |
| 13 | 5263 |
| 14 | 4607 |
| 15 | 3497 |
| 16 | 589843 |
| 17 | 430261 |
| 18 | 574823 |
| 19 | 567583 |
| 20 | 554111 |
| 21 | 545869 |
| 22 | 20490043 |
| 23 | 14635735 |
| 24 | 8781429 |
[1,2,5,66,91,55,21,46,1362,1654,1419,574,6463, 5263,4607,3497,589843,430261,574823,567583,554111, 545869,20490043,14635735,8781429] |