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 | 607251736576 |
17 | 7244686764032 |
18 | 101611422797824 |
19 | 1170362064019456 |
20 | 19281174853615616 |
21 | 261583327556386816 |
22 | 4084459360167657472 |
23 | 54366023748591386624 |
[1,1,2,4,16,56,256,1072,11264,78976,672256, 4653056,49810432,433429504,4448608256,39221579776, 607251736576,7244686764032,101611422797824, 1170362064019456,19281174853615616, 261583327556386816,4084459360167657472, 54366023748591386624] |