n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 5 |
5 | 13 |
6 | 32 |
7 | 94 |
8 | 297 |
9 | 1036 |
10 | 3911 |
11 | 15918 |
12 | 69350 |
13 | 321779 |
14 | 1582745 |
15 | 8220349 |
16 | 44925187 |
17 | 257563819 |
18 | 1544896976 |
19 | 9671289892 |
20 | 63051738167 |
21 | 427254561854 |
22 | 3003872526303 |
23 | 21876513464296 |
24 | 164790822258172 |
25 | 1282198404741305 |
26 | 10292007232817249 |
27 | 85126350266370355 |
[0,1,1,3,5,13,32,94,297,1036,3911,15918,69350, 321779,1582745,8220349,44925187,257563819, 1544896976,9671289892,63051738167,427254561854, 3003872526303,21876513464296,164790822258172, 1282198404741305,10292007232817249, 85126350266370355] |