n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 21 |
5 | 52 |
6 | 193 |
7 | 532 |
8 | 2034 |
9 | 5985 |
10 | 23283 |
11 | 71610 |
12 | 281688 |
13 | 894660 |
14 | 3545919 |
15 | 11541114 |
16 | 45988056 |
17 | 152599174 |
18 | 610459630 |
19 | 2057627572 |
20 | 8255756937 |
21 | 28190598072 |
22 | 113365682625 |
23 | 391366771432 |
24 | 1576636806694 |
25 | 5494187368180 |
26 | 22164611973120 |
27 | 77867785091880 |
28 | 314485620041700 |
29 | 1112719363776720 |
30 | 4498007052780945 |
[1,1,3,6,21,52,193,532,2034,5985,23283,71610, 281688,894660,3545919,11541114,45988056,152599174, 610459630,2057627572,8255756937,28190598072, 113365682625,391366771432,1576636806694, 5494187368180,22164611973120,77867785091880, 314485620041700,1112719363776720,4498007052780945] |