n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 56 |
3 | 392 |
4 | 2744 |
5 | 19208 |
6 | 134456 |
7 | 941192 |
8 | 6588344 |
9 | 46118408 |
10 | 322828856 |
11 | 2259801992 |
12 | 15818613916 |
13 | 110730297216 |
14 | 775112079168 |
15 | 5425784544768 |
16 | 37980491747520 |
17 | 265863441771648 |
18 | 1861044089174592 |
19 | 13027308601633536 |
[1,8,56,392,2744,19208,134456,941192,6588344, 46118408,322828856,2259801992,15818613916, 110730297216,775112079168,5425784544768, 37980491747520,265863441771648,1861044089174592, 13027308601633536] |