n | a(n) |
---|---|
1 | 6 |
2 | 30 |
3 | 126 |
4 | 606 |
5 | 2766 |
6 | 13134 |
7 | 60990 |
8 | 286014 |
9 | 1333926 |
10 | 6235950 |
11 | 29160390 |
12 | 136280046 |
13 | 637801014 |
14 | 2981709558 |
15 | 13958158806 |
16 | 65278026174 |
17 | 305608333062 |
18 | 1429710254742 |
19 | 6693530115990 |
20 | 31322452467006 |
21 | 146644481901582 |
22 | 686366924272686 |
23 | 3213444320539710 |
24 | 15042778398965358 |
[6,30,126,606,2766,13134,60990,286014,1333926, 6235950,29160390,136280046,637801014,2981709558, 13958158806,65278026174,305608333062, 1429710254742,6693530115990,31322452467006, 146644481901582,686366924272686,3213444320539710, 15042778398965358] |