n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 12 |
3 | 38 |
4 | 117 |
5 | 330 |
6 | 906 |
7 | 2367 |
8 | 6027 |
9 | 14873 |
10 | 35892 |
11 | 84657 |
12 | 196018 |
13 | 445746 |
14 | 997962 |
15 | 2201438 |
16 | 4792005 |
17 | 10300950 |
18 | 21889368 |
19 | 46012119 |
20 | 95746284 |
21 | 197344937 |
22 | 403121547 |
23 | 816501180 |
24 | 1640549317 |
25 | 3271188702 |
26 | 6475456896 |
27 | 12730032791 |
28 | 24861111315 |
29 | 48246729411 |
30 | 93065426256 |
[1,3,12,38,117,330,906,2367,6027,14873,35892, 84657,196018,445746,997962,2201438,4792005, 10300950,21889368,46012119,95746284,197344937, 403121547,816501180,1640549317,3271188702, 6475456896,12730032791,24861111315,48246729411, 93065426256] |