n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 19 |
5 | 51 |
6 | 139 |
7 | 379 |
8 | 1035 |
9 | 2827 |
10 | 7723 |
11 | 21099 |
12 | 57643 |
13 | 157483 |
14 | 430251 |
15 | 1175467 |
16 | 3211435 |
17 | 8773803 |
18 | 23970475 |
19 | 65488555 |
20 | 178918059 |
21 | 488813227 |
22 | 1335462571 |
23 | 3648551595 |
24 | 9968028331 |
25 | 27233159851 |
26 | 74402376363 |
27 | 203271072427 |
28 | 555346897579 |
29 | 1517235940011 |
30 | 4145165675179 |
[1,1,3,7,19,51,139,379,1035,2827,7723,21099,57643, 157483,430251,1175467,3211435,8773803,23970475, 65488555,178918059,488813227,1335462571, 3648551595,9968028331,27233159851,74402376363, 203271072427,555346897579,1517235940011, 4145165675179] |