n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 24 |
3 | 84 |
4 | 332 |
5 | 1336 |
6 | 5478 |
7 | 22658 |
8 | 94196 |
9 | 392664 |
10 | 1639274 |
11 | 6849002 |
12 | 28627874 |
13 | 119688094 |
14 | 500456806 |
15 | 2092720174 |
16 | 8751273556 |
17 | 36596513060 |
18 | 153042707976 |
19 | 640011807436 |
20 | 2676483843602 |
21 | 11192882945426 |
22 | 46807955443900 |
[1,6,24,84,332,1336,5478,22658,94196,392664, 1639274,6849002,28627874,119688094,500456806, 2092720174,8751273556,36596513060,153042707976, 640011807436,2676483843602,11192882945426, 46807955443900] |