n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 4 |
6 | 7 |
7 | 16 |
8 | 35 |
9 | 133 |
10 | 363 |
11 | 1590 |
12 | 5600 |
13 | 33892 |
14 | 154647 |
15 | 1163836 |
16 | 6812622 |
17 | 66760064 |
18 | 504710757 |
19 | 6331779830 |
20 | 61565739001 |
21 | 996948455181 |
22 | 12487323542741 |
23 | 259917683188595 |
24 | 4189678086571772 |
25 | 112326942697897637 |
[1,1,1,1,4,7,16,35,133,363,1590,5600,33892,154647, 1163836,6812622,66760064,504710757,6331779830, 61565739001,996948455181,12487323542741, 259917683188595,4189678086571772, 112326942697897637] |