n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 15 |
4 | 47 |
5 | 155 |
6 | 550 |
7 | 2035 |
8 | 7722 |
9 | 29985 |
10 | 118765 |
11 | 479168 |
12 | 1964860 |
13 | 8163456 |
14 | 34289654 |
15 | 145407531 |
16 | 622140088 |
17 | 2684352052 |
18 | 11668740663 |
19 | 51051121400 |
20 | 224634027148 |
21 | 993743689121 |
22 | 4418607853426 |
23 | 19739660278386 |
24 | 88559523924740 |
25 | 398844406130059 |
26 | 1802754697899622 |
27 | 8176336856042439 |
[1,2,5,15,47,155,550,2035,7722,29985,118765, 479168,1964860,8163456,34289654,145407531, 622140088,2684352052,11668740663,51051121400, 224634027148,993743689121,4418607853426, 19739660278386,88559523924740,398844406130059, 1802754697899622,8176336856042439] |