n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 42 |
6 | 132 |
7 | 429 |
8 | 1430 |
9 | 4861 |
10 | 16778 |
11 | 58598 |
12 | 206516 |
13 | 732825 |
14 | 2613834 |
15 | 9358677 |
16 | 33602822 |
17 | 120902914 |
18 | 435668420 |
19 | 1571649221 |
20 | 5674201118 |
21 | 20497829133 |
22 | 74079051906 |
23 | 267803779710 |
24 | 968355724724 |
25 | 3502058316337 |
26 | 12666676646162 |
27 | 45818284122149 |
[1,1,2,5,14,42,132,429,1430,4861,16778,58598, 206516,732825,2613834,9358677,33602822,120902914, 435668420,1571649221,5674201118,20497829133, 74079051906,267803779710,968355724724, 3502058316337,12666676646162,45818284122149] |