n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 16 |
4 | 65 |
5 | 267 |
6 | 1105 |
7 | 4597 |
8 | 19196 |
9 | 80380 |
10 | 337284 |
11 | 1417582 |
12 | 5965622 |
13 | 25130844 |
14 | 105954110 |
15 | 447015744 |
16 | 1886996681 |
17 | 7969339643 |
18 | 33670068133 |
19 | 142301618265 |
20 | 601586916703 |
21 | 2543852427847 |
22 | 10759094481491 |
23 | 45513214057191 |
24 | 192560373660245 |
25 | 814807864164497 |
[1,4,16,65,267,1105,4597,19196,80380,337284, 1417582,5965622,25130844,105954110,447015744, 1886996681,7969339643,33670068133,142301618265, 601586916703,2543852427847,10759094481491, 45513214057191,192560373660245,814807864164497] |