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| n | a(n) |
|---|---|
| 0 | 8 |
| 1 | 8 |
| 2 | 70 |
| 3 | 8658 |
| 4 | 8017992 |
| 5 | 24890112360 |
| 6 | 193493256194160 |
| 7 | 3252016576198671120 |
| 8 | 106562062650700726392960 |
| 9 | 6292383222170114916877376640 |
| 10 | 629238322198088740255039498886400 |
| 11 | 101339461028293861001169787158647750400 |
[8,8,70,8658,8017992,24890112360,193493256194160, 3252016576198671120,106562062650700726392960, 6292383222170114916877376640, 629238322198088740255039498886400, 101339461028293861001169787158647750400] |