n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 35 |
5 | 126 |
6 | 462 |
7 | 1716 |
8 | 6443 |
9 | 24391 |
10 | 92928 |
11 | 355862 |
12 | 1368458 |
13 | 5280744 |
14 | 20438148 |
15 | 79302960 |
16 | 308385355 |
17 | 1201536286 |
18 | 4689450021 |
19 | 18330233110 |
20 | 71747534460 |
21 | 281177705490 |
22 | 1103163479190 |
23 | 4332522733560 |
24 | 17031238725410 |
25 | 67007449610751 |
26 | 263841039245280 |
27 | 1039628691988795 |
[1,1,3,10,35,126,462,1716,6443,24391,92928,355862, 1368458,5280744,20438148,79302960,308385355, 1201536286,4689450021,18330233110,71747534460, 281177705490,1103163479190,4332522733560, 17031238725410,67007449610751,263841039245280, 1039628691988795] |