n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 29 |
5 | 107 |
6 | 395 |
7 | 1555 |
8 | 6225 |
9 | 25605 |
10 | 107267 |
11 | 456195 |
12 | 1967467 |
13 | 8577059 |
14 | 37771451 |
15 | 167734281 |
16 | 750539481 |
17 | 3380693983 |
18 | 15318535101 |
19 | 69782167449 |
20 | 319415226689 |
21 | 1468451997493 |
22 | 6777722838993 |
23 | 31396508283259 |
24 | 145922107990605 |
25 | 680281115404317 |
26 | 3180395227067163 |
27 | 14907615499732957 |
28 | 70046804631141103 |
[1,1,3,9,29,107,395,1555,6225,25605,107267,456195, 1967467,8577059,37771451,167734281,750539481, 3380693983,15318535101,69782167449,319415226689, 1468451997493,6777722838993,31396508283259, 145922107990605,680281115404317,3180395227067163, 14907615499732957,70046804631141103] |