n | a(n) |
---|---|
1 | 292 |
2 | 1068 |
3 | 3516 |
4 | 11656 |
5 | 38700 |
6 | 128920 |
7 | 429252 |
8 | 1429352 |
9 | 4757532 |
10 | 15839544 |
11 | 52732564 |
12 | 175561496 |
13 | 584466876 |
14 | 1945813896 |
15 | 6477977380 |
16 | 21566507704 |
17 | 71798959308 |
18 | 239032817336 |
19 | 795786352324 |
20 | 2649328064136 |
21 | 8820125707548 |
[292,1068,3516,11656,38700,128920,429252,1429352, 4757532,15839544,52732564,175561496,584466876, 1945813896,6477977380,21566507704,71798959308, 239032817336,795786352324,2649328064136, 8820125707548] |