n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 36 |
4 | 148 |
5 | 554 |
6 | 2024 |
7 | 7134 |
8 | 24796 |
9 | 84625 |
10 | 285784 |
11 | 953430 |
12 | 3151332 |
13 | 10314257 |
14 | 33457972 |
15 | 107557792 |
16 | 342732670 |
17 | 1082509680 |
18 | 3389190112 |
19 | 10518508294 |
20 | 32361863632 |
[1,8,36,148,554,2024,7134,24796,84625,285784, 953430,3151332,10314257,33457972,107557792, 342732670,1082509680,3389190112,10518508294, 32361863632] |