n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 16 |
4 | 52 |
5 | 200 |
6 | 792 |
7 | 3080 |
8 | 12164 |
9 | 47827 |
10 | 188078 |
11 | 739654 |
12 | 2908308 |
13 | 11433623 |
14 | 44951623 |
15 | 176719636 |
16 | 694738324 |
17 | 2731215010 |
18 | 10737125607 |
19 | 42210368413 |
20 | 165939449883 |
21 | 652348443363 |
22 | 2564539277676 |
23 | 10081819289214 |
24 | 39634040551712 |
[1,4,16,52,200,792,3080,12164,47827,188078,739654, 2908308,11433623,44951623,176719636,694738324, 2731215010,10737125607,42210368413,165939449883, 652348443363,2564539277676,10081819289214, 39634040551712] |