n | a(n) |
---|---|
1 | 3 |
2 | 5 |
3 | 14 |
4 | 42 |
5 | 132 |
6 | 429 |
7 | 1430 |
8 | 4862 |
9 | 16796 |
10 | 58786 |
11 | 208012 |
12 | 742900 |
13 | 2674440 |
14 | 9694845 |
15 | 35357670 |
16 | 129644790 |
17 | 477638700 |
18 | 1767263190 |
19 | 6564120420 |
20 | 24466267020 |
21 | 91482563640 |
22 | 343059613650 |
23 | 1289904147324 |
24 | 4861946401452 |
25 | 18367353072152 |
26 | 69533550916004 |
27 | 263747951750360 |
[3,5,14,42,132,429,1430,4862,16796,58786,208012, 742900,2674440,9694845,35357670,129644790, 477638700,1767263190,6564120420,24466267020, 91482563640,343059613650,1289904147324, 4861946401452,18367353072152,69533550916004, 263747951750360] |