n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 8 |
5 | 52 |
6 | 502 |
7 | 6824 |
8 | 127166 |
9 | 3205924 |
10 | 108975934 |
11 | 5006366048 |
12 | 312601245662 |
13 | 26708244267148 |
14 | 3142852107059758 |
15 | 512229404374936616 |
16 | 116165284523764481294 |
17 | 36791597841822774872116 |
18 | 16320947226945992981680606 |
19 | 10163558457757761048966068912 |
[0,1,1,2,8,52,502,6824,127166,3205924,108975934, 5006366048,312601245662,26708244267148, 3142852107059758,512229404374936616, 116165284523764481294,36791597841822774872116, 16320947226945992981680606, 10163558457757761048966068912] |