n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 1 |
5 | 5 |
6 | 5 |
7 | 41 |
8 | 36 |
9 | 199 |
10 | 420 |
11 | 1377 |
12 | 4140 |
13 | 10728 |
14 | 36839 |
15 | 87400 |
16 | 283225 |
17 | 660812 |
18 | 1940633 |
19 | 4609045 |
20 | 12276261 |
21 | 29878104 |
22 | 73822900 |
23 | 181872899 |
24 | 428160287 |
25 | 1053371836 |
26 | 2416581766 |
27 | 5864707345 |
28 | 13309989382 |
29 | 31614183273 |
30 | 71451195226 |
[1,1,2,1,5,5,41,36,199,420,1377,4140,10728,36839, 87400,283225,660812,1940633,4609045,12276261, 29878104,73822900,181872899,428160287,1053371836, 2416581766,5864707345,13309989382,31614183273, 71451195226] |