n | a(n) |
---|---|
1 | 3 |
2 | 2 |
3 | 6 |
4 | 22 |
5 | 90 |
6 | 394 |
7 | 1806 |
8 | 8558 |
9 | 41586 |
10 | 206098 |
11 | 1037718 |
12 | 5293446 |
13 | 27297738 |
14 | 142078746 |
15 | 745387038 |
16 | 3937603038 |
17 | 20927156706 |
18 | 111818026018 |
19 | 600318853926 |
20 | 3236724317174 |
21 | 17518619320890 |
22 | 95149655201962 |
23 | 518431875418926 |
24 | 2832923350929742 |
[3,2,6,22,90,394,1806,8558,41586,206098,1037718, 5293446,27297738,142078746,745387038,3937603038, 20927156706,111818026018,600318853926, 3236724317174,17518619320890,95149655201962, 518431875418926,2832923350929742] |