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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 18 |
| 2 | 18 |
| 3 | 14364 |
| 4 | 58968 |
| 5 | 14364 |
| 6 | 70203672 |
| 7 | 671650056 |
| 8 | 671650056 |
| 9 | 70203672 |
| 10 | 1192064637456 |
| 11 | 20707300240704 |
| 12 | 47530354598496 |
| 13 | 20707300240704 |
| 14 | 1192064637456 |
| 15 | 52269828456672288 |
| 16 | 1437626817559769760 |
| 17 | 5941554215913771840 |
| 18 | 5941554215913771840 |
| 19 | 1437626817559769760 |
| 20 | 52269828456672288 |
| 21 | 4930307288899134335424 |
| 22 | 197041019249105562351744 |
| 23 | 1283341580573615116868160 |
| 24 | 2308585363008068715943680 |
[1,18,18,14364,58968,14364,70203672,671650056, 671650056,70203672,1192064637456,20707300240704, 47530354598496,20707300240704,1192064637456, 52269828456672288,1437626817559769760, 5941554215913771840,5941554215913771840, 1437626817559769760,52269828456672288, 4930307288899134335424,197041019249105562351744, 1283341580573615116868160, 2308585363008068715943680] |