n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 6 |
3 | 12 |
4 | 54 |
5 | 216 |
6 | 1032 |
7 | 4896 |
8 | 24606 |
9 | 125040 |
10 | 651348 |
11 | 3432168 |
12 | 18331992 |
13 | 98814816 |
14 | 537343632 |
15 | 2942475552 |
16 | 16214888286 |
17 | 89835783264 |
18 | 500116783740 |
19 | 2795958732024 |
20 | 15690597591636 |
21 | 88354191756816 |
22 | 499060719941616 |
23 | 2826794871554112 |
24 | 16052536475622792 |
[1,0,6,12,54,216,1032,4896,24606,125040,651348, 3432168,18331992,98814816,537343632,2942475552, 16214888286,89835783264,500116783740, 2795958732024,15690597591636,88354191756816, 499060719941616,2826794871554112, 16052536475622792] |