n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 41 |
6 | 142 |
7 | 685 |
8 | 3192 |
9 | 19921 |
10 | 116282 |
11 | 887765 |
12 | 6219972 |
13 | 56126201 |
14 | 458790022 |
15 | 4776869245 |
16 | 44625674352 |
17 | 526589630881 |
18 | 5534347077362 |
19 | 72989204937125 |
20 | 852334810990332 |
21 | 12424192360405961 |
22 | 159592488559874302 |
23 | 2547879762929443405 |
24 | 35703580441464231912 |
[0,1,2,5,12,41,142,685,3192,19921,116282,887765, 6219972,56126201,458790022,4776869245,44625674352, 526589630881,5534347077362,72989204937125, 852334810990332,12424192360405961, 159592488559874302,2547879762929443405, 35703580441464231912] |