n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 84 |
4 | 2120 |
5 | 61404 |
6 | 1934548 |
7 | 64379980 |
8 | 2226478604 |
9 | 79225597516 |
10 | 2881791020120 |
11 | 106672402111192 |
12 | 4005192227754984 |
13 | 152168779157569376 |
14 | 5839221480075313396 |
15 | 225986788425426186532 |
16 | 8810672964167893735292 |
17 | 345722424894740010814784 |
18 | 13642862904817471637398044 |
[1,4,84,2120,61404,1934548,64379980,2226478604, 79225597516,2881791020120,106672402111192, 4005192227754984,152168779157569376, 5839221480075313396,225986788425426186532, 8810672964167893735292,345722424894740010814784, 13642862904817471637398044] |