n | a(n) |
---|---|
2 | 42 |
3 | 158 |
4 | 426 |
5 | 1202 |
6 | 2970 |
7 | 8234 |
8 | 20538 |
9 | 58202 |
10 | 148602 |
11 | 430778 |
12 | 1120506 |
13 | 3298682 |
14 | 8679930 |
15 | 25783034 |
16 | 68281338 |
17 | 203806202 |
18 | 541575162 |
19 | 1620552698 |
[42,158,426,1202,2970,8234,20538,58202,148602, 430778,1120506,3298682,8679930,25783034,68281338, 203806202,541575162,1620552698] |