n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 29 |
6 | 98 |
7 | 372 |
8 | 1538 |
9 | 6755 |
10 | 30996 |
11 | 146982 |
12 | 715120 |
13 | 3552254 |
14 | 17951322 |
15 | 92045058 |
16 | 477882876 |
17 | 2508122859 |
18 | 13289437362 |
19 | 71010166670 |
20 | 382291606570 |
21 | 2072025828101 |
22 | 11298920776704 |
23 | 61954857579594 |
24 | 341427364138880 |
[1,2,4,10,29,98,372,1538,6755,30996,146982,715120, 3552254,17951322,92045058,477882876,2508122859, 13289437362,71010166670,382291606570, 2072025828101,11298920776704,61954857579594, 341427364138880] |