n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 24 |
5 | 64 |
6 | 234 |
7 | 773 |
8 | 2834 |
9 | 9831 |
10 | 37010 |
11 | 136510 |
12 | 515786 |
13 | 1945824 |
14 | 7551398 |
15 | 28998957 |
16 | 113230854 |
17 | 443548687 |
18 | 1754250827 |
19 | 6920531600 |
20 | 27637345567 |
21 | 110388869744 |
22 | 443391403250 |
23 | 1783214166259 |
24 | 7222153140203 |
25 | 29236895471647 |
26 | 118939528499130 |
27 | 484637762074954 |
28 | 1982394583968022 |
[1,1,3,6,24,64,234,773,2834,9831,37010,136510, 515786,1945824,7551398,28998957,113230854, 443548687,1754250827,6920531600,27637345567, 110388869744,443391403250,1783214166259, 7222153140203,29236895471647,118939528499130, 484637762074954,1982394583968022] |