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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 28 |
| 3 | 350 |
| 4 | 4706 |
| 5 | 956384 |
| 6 | 14061140 |
| 7 | 3143981870 |
| 8 | 47564380970 |
| 9 | 11061198475550 |
| 10 | 40328534467494098 |
| 11 | 624021469287616610 |
| 12 | 2338958497948612884092 |
| 13 | 568740383597968804344752 |
| 14 | 8885203954833615367662872 |
| 15 | 2175457720411301277807088352 |
| 16 | 8390179243143767727343229863076 |
[8,28,350,4706,956384,14061140,3143981870, 47564380970,11061198475550,40328534467494098, 624021469287616610,2338958497948612884092, 568740383597968804344752, 8885203954833615367662872, 2175457720411301277807088352, 8390179243143767727343229863076] |