n | a(n) |
---|---|
1 | 2 |
2 | 5 |
3 | 14 |
4 | 52 |
5 | 210 |
6 | 871 |
7 | 3566 |
8 | 13899 |
9 | 50841 |
10 | 173470 |
11 | 553021 |
12 | 1652621 |
13 | 4652572 |
14 | 12400392 |
15 | 31443461 |
16 | 76188169 |
17 | 177120011 |
18 | 396481264 |
19 | 857322183 |
20 | 1795814448 |
21 | 3653191802 |
22 | 7233526075 |
23 | 13969016501 |
24 | 26357103244 |
25 | 48668165412 |
26 | 88071764221 |
[2,5,14,52,210,871,3566,13899,50841,173470,553021, 1652621,4652572,12400392,31443461,76188169, 177120011,396481264,857322183,1795814448, 3653191802,7233526075,13969016501,26357103244, 48668165412,88071764221] |