n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 2 |
5 | 6 |
6 | 10 |
7 | 17 |
8 | 45 |
9 | 153 |
10 | 561 |
11 | 1670 |
12 | 4780 |
13 | 14974 |
14 | 45555 |
15 | 140211 |
16 | 419924 |
17 | 1245122 |
18 | 3669858 |
19 | 10724147 |
20 | 31185503 |
21 | 89840674 |
22 | 256746801 |
23 | 728672328 |
24 | 2051488536 |
25 | 5732076608 |
26 | 15895090361 |
27 | 43752447121 |
28 | 119570863227 |
29 | 324496444134 |
[1,1,2,2,6,10,17,45,153,561,1670,4780,14974,45555, 140211,419924,1245122,3669858,10724147,31185503, 89840674,256746801,728672328,2051488536, 5732076608,15895090361,43752447121,119570863227, 324496444134] |