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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 32 |
| 3 | 256 |
| 4 | 3472 |
| 5 | 73344 |
| 6 | 2542368 |
| 7 | 140090240 |
| 8 | 12503757968 |
| 9 | 1787244586880 |
| 10 | 411927241028352 |
| 11 | 152442345546739968 |
| 12 | 90819596095626887104 |
| 13 | 86960426240537811217920 |
| 14 | 133963874202574308172821152 |
[6,32,256,3472,73344,2542368,140090240, 12503757968,1787244586880,411927241028352, 152442345546739968,90819596095626887104, 86960426240537811217920, 133963874202574308172821152] |