n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 5 |
5 | 21 |
6 | 31 |
7 | 113 |
8 | 177 |
9 | 766 |
10 | 1271 |
11 | 4687 |
12 | 7999 |
13 | 34412 |
14 | 60166 |
15 | 225891 |
16 | 401201 |
17 | 1702653 |
18 | 3064183 |
19 | 11646431 |
20 | 21171246 |
21 | 88894429 |
22 | 162966750 |
23 | 624746839 |
24 | 1153324813 |
25 | 4805206256 |
26 | 8923870307 |
27 | 34421146489 |
28 | 64252106507 |
29 | 266183327326 |
[1,1,4,5,21,31,113,177,766,1271,4687,7999,34412, 60166,225891,401201,1702653,3064183,11646431, 21171246,88894429,162966750,624746839,1153324813, 4805206256,8923870307,34421146489,64252106507, 266183327326] |