n | a(n) |
---|---|
0 | 2 |
1 | 2 |
2 | 24 |
3 | 68 |
4 | 376 |
5 | 1432 |
6 | 6624 |
7 | 27568 |
8 | 121376 |
9 | 518432 |
10 | 2250624 |
11 | 9685568 |
12 | 41877376 |
13 | 180610432 |
14 | 779994624 |
15 | 3366093568 |
16 | 14532133376 |
17 | 62725202432 |
18 | 270771738624 |
19 | 1168795501568 |
20 | 5045308389376 |
[2,2,24,68,376,1432,6624,27568,121376,518432, 2250624,9685568,41877376,180610432,779994624, 3366093568,14532133376,62725202432,270771738624, 1168795501568,5045308389376] |