n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 32 |
4 | 278 |
5 | 2894 |
6 | 35986 |
7 | 514128 |
8 | 8306448 |
9 | 149558688 |
10 | 2968216944 |
11 | 64314676128 |
12 | 1510065781968 |
13 | 38178537908016 |
14 | 1033794746169168 |
15 | 29840453678758272 |
16 | 914461132860063360 |
17 | 29645845798652997120 |
18 | 1013511411165693991680 |
19 | 36436289007997132646400 |
20 | 1373976152501162688288000 |
[1,1,5,32,278,2894,35986,514128,8306448,149558688, 2968216944,64314676128,1510065781968, 38178537908016,1033794746169168,29840453678758272, 914461132860063360,29645845798652997120, 1013511411165693991680,36436289007997132646400, 1373976152501162688288000] |