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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 1 |
| 4 | 494 |
| 5 | 533 |
| 6 | 133 |
| 7 | 1 |
| 8 | 361131 |
| 9 | 998130 |
| 10 | 318354 |
| 11 | 389455 |
| 12 | 275577 |
| 13 | 42778 |
| 14 | 14162 |
| 15 | 1 |
| 16 | 4436526107 |
| 17 | 21759994113 |
| 18 | 223006618265 |
| 19 | 97254937860 |
| 20 | 19669357917 |
[1,5,1,494,533,133,1,361131,998130,318354,389455, 275577,42778,14162,1,4436526107,21759994113, 223006618265,97254937860,19669357917] |