n | a(n) |
---|---|
1 | 2 |
2 | 12 |
3 | 42 |
4 | 122 |
5 | 332 |
6 | 882 |
7 | 2322 |
8 | 6092 |
9 | 15962 |
10 | 41802 |
11 | 109452 |
12 | 286562 |
13 | 750242 |
14 | 1964172 |
15 | 5142282 |
16 | 13462682 |
17 | 35245772 |
18 | 92274642 |
19 | 241578162 |
20 | 632459852 |
21 | 1655801402 |
22 | 4334944362 |
23 | 11349031692 |
24 | 29712150722 |
25 | 77787420482 |
26 | 203650110732 |
[2,12,42,122,332,882,2322,6092,15962,41802,109452, 286562,750242,1964172,5142282,13462682,35245772, 92274642,241578162,632459852,1655801402, 4334944362,11349031692,29712150722,77787420482, 203650110732] |