n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 3 |
6 | 5 |
7 | 11 |
8 | 28 |
9 | 87 |
10 | 331 |
11 | 1565 |
12 | 9440 |
13 | 72908 |
14 | 712687 |
15 | 8940809 |
16 | 146775560 |
17 | 3135694178 |
18 | 86745468962 |
19 | 3153522201617 |
20 | 151857397825012 |
21 | 9589042822673342 |
22 | 797159462260375958 |
23 | 88429042471401581924 |
24 | 13020775433175768654191 |
25 | 2532864078831923248348591 |
[1,1,1,1,2,3,5,11,28,87,331,1565,9440,72908, 712687,8940809,146775560,3135694178,86745468962, 3153522201617,151857397825012,9589042822673342, 797159462260375958,88429042471401581924, 13020775433175768654191,2532864078831923248348591] |