n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 3 |
3 | 7 |
4 | 29 |
5 | 107 |
6 | 421 |
7 | 1659 |
8 | 6597 |
9 | 26299 |
10 | 105029 |
11 | 419771 |
12 | 1678405 |
13 | 6712251 |
14 | 26846277 |
15 | 107379643 |
16 | 429507653 |
17 | 1718008763 |
18 | 6871991365 |
19 | 27487878075 |
20 | 109951337541 |
21 | 439805000635 |
22 | 1759219303493 |
23 | 7036875815867 |
24 | 28147500467269 |
[1,0,3,7,29,107,421,1659,6597,26299,105029,419771, 1678405,6712251,26846277,107379643,429507653, 1718008763,6871991365,27487878075,109951337541, 439805000635,1759219303493,7036875815867, 28147500467269] |