n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 13 |
5 | 34 |
6 | 311 |
7 | 1027 |
8 | 13097 |
9 | 830791 |
10 | 3571637 |
11 | 343729027 |
12 | 8317846498 |
13 | 42507358018 |
14 | 1190957966624 |
15 | 207446783316571 |
16 | 42972383599819106 |
17 | 263399640264083317 |
18 | 66893661053152500843 |
19 | 2896125979752486313692 |
20 | 19472790611741252075400 |
21 | 6423885211527441058125587 |
[1,1,2,13,34,311,1027,13097,830791,3571637, 343729027,8317846498,42507358018,1190957966624, 207446783316571,42972383599819106, 263399640264083317,66893661053152500843, 2896125979752486313692,19472790611741252075400, 6423885211527441058125587] |