n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 16 |
5 | 56 |
6 | 256 |
7 | 1072 |
8 | 11264 |
9 | 78976 |
10 | 672256 |
11 | 4653056 |
12 | 49810432 |
13 | 433429504 |
14 | 4448608256 |
15 | 39221579776 |
16 | 1914926104576 |
17 | 29475151020032 |
18 | 501759779405824 |
19 | 6238907914387456 |
20 | 120652091860975616 |
21 | 1751735807564578816 |
22 | 29062253310781161472 |
23 | 398033706586943258624 |
[1,1,2,4,16,56,256,1072,11264,78976,672256, 4653056,49810432,433429504,4448608256,39221579776, 1914926104576,29475151020032,501759779405824, 6238907914387456,120652091860975616, 1751735807564578816,29062253310781161472, 398033706586943258624] |