n | a(n) |
---|---|
1 | 0 |
2 | 3 |
3 | 8 |
4 | 36 |
5 | 173 |
6 | 858 |
7 | 4258 |
8 | 21386 |
9 | 107465 |
10 | 541047 |
11 | 2725498 |
12 | 13733762 |
13 | 69215100 |
14 | 348852964 |
15 | 1758324488 |
16 | 8862635135 |
17 | 44671460074 |
18 | 225164071583 |
19 | 1134929377517 |
20 | 5720565544510 |
21 | 28834291127949 |
22 | 145338167739511 |
23 | 732571679461791 |
[0,3,8,36,173,858,4258,21386,107465,541047, 2725498,13733762,69215100,348852964,1758324488, 8862635135,44671460074,225164071583,1134929377517, 5720565544510,28834291127949,145338167739511, 732571679461791] |