n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 42 |
5 | 132 |
6 | 430 |
7 | 1444 |
8 | 4984 |
9 | 17648 |
10 | 64024 |
11 | 237712 |
12 | 902416 |
13 | 3499680 |
14 | 13853424 |
15 | 55931168 |
16 | 230142848 |
17 | 964460288 |
18 | 4113656704 |
19 | 17846729984 |
20 | 78708574976 |
21 | 352678567424 |
22 | 1604739694848 |
23 | 7411167960576 |
24 | 34723660917760 |
[1,2,5,14,42,132,430,1444,4984,17648,64024,237712, 902416,3499680,13853424,55931168,230142848, 964460288,4113656704,17846729984,78708574976, 352678567424,1604739694848,7411167960576, 34723660917760] |