n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 17 |
4 | 58 |
5 | 202 |
6 | 729 |
7 | 2695 |
8 | 10140 |
9 | 38719 |
10 | 149682 |
11 | 584672 |
12 | 2304045 |
13 | 9149194 |
14 | 36573273 |
15 | 147057039 |
16 | 594374148 |
17 | 2413480053 |
18 | 9840832968 |
19 | 40276235226 |
20 | 165403090815 |
21 | 681373222191 |
22 | 2814872996190 |
23 | 11659083772986 |
24 | 48407568680323 |
25 | 201431186725778 |
26 | 839913707978789 |
[1,2,5,17,58,202,729,2695,10140,38719,149682, 584672,2304045,9149194,36573273,147057039, 594374148,2413480053,9840832968,40276235226, 165403090815,681373222191,2814872996190, 11659083772986,48407568680323,201431186725778, 839913707978789] |