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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 38 |
| 2 | 652 |
| 3 | 9080 |
| 4 | 116656 |
| 5 | 1446368 |
| 6 | 17636032 |
| 7 | 213311360 |
| 8 | 2569812736 |
| 9 | 30898216448 |
| 10 | 371141389312 |
| 11 | 4455873443840 |
| 12 | 53483541999616 |
| 13 | 641880868118528 |
| 14 | 7703040602324992 |
| 15 | 92439308337643520 |
| 16 | 1109288626710839296 |
[1,38,652,9080,116656,1446368,17636032,213311360, 2569812736,30898216448,371141389312,4455873443840, 53483541999616,641880868118528,7703040602324992, 92439308337643520,1109288626710839296] |