n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 7 |
6 | 13 |
7 | 31 |
8 | 66 |
9 | 159 |
10 | 365 |
11 | 900 |
12 | 2162 |
13 | 5417 |
14 | 13436 |
15 | 34165 |
16 | 86603 |
17 | 223028 |
18 | 574493 |
19 | 1495524 |
20 | 3900055 |
21 | 10246172 |
22 | 26982966 |
23 | 71447432 |
24 | 189664782 |
25 | 505605729 |
26 | 1351179886 |
27 | 3623051567 |
28 | 9737403960 |
29 | 26243202664 |
30 | 70878565004 |
[1,1,2,3,7,13,31,66,159,365,900,2162,5417,13436, 34165,86603,223028,574493,1495524,3900055, 10246172,26982966,71447432,189664782,505605729, 1351179886,3623051567,9737403960,26243202664, 70878565004] |