n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 8 |
3 | 27 |
4 | 100 |
5 | 393 |
6 | 1624 |
7 | 7017 |
8 | 31558 |
9 | 147177 |
10 | 709592 |
11 | 3527769 |
12 | 18045428 |
13 | 94797147 |
14 | 510594056 |
15 | 2815698483 |
16 | 15877236898 |
17 | 91442860467 |
18 | 537363872008 |
19 | 3219075448251 |
20 | 19641501806932 |
21 | 121974079707225 |
22 | 770381455577048 |
23 | 4945495555291017 |
24 | 32249369951426822 |
[1,3,8,27,100,393,1624,7017,31558,147177,709592, 3527769,18045428,94797147,510594056,2815698483, 15877236898,91442860467,537363872008, 3219075448251,19641501806932,121974079707225, 770381455577048,4945495555291017, 32249369951426822] |