n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 11 |
5 | 20 |
6 | 36 |
7 | 66 |
8 | 121 |
9 | 220 |
10 | 401 |
11 | 730 |
12 | 1331 |
13 | 2423 |
14 | 4414 |
15 | 8039 |
16 | 14641 |
17 | 26663 |
18 | 48558 |
19 | 88433 |
20 | 161051 |
21 | 293299 |
22 | 534145 |
23 | 972765 |
24 | 1771561 |
25 | 3226296 |
26 | 5875603 |
27 | 10700415 |
28 | 19487171 |
29 | 35489261 |
30 | 64631634 |
31 | 117704565 |
[1,1,3,6,11,20,36,66,121,220,401,730,1331,2423, 4414,8039,14641,26663,48558,88433,161051,293299, 534145,972765,1771561,3226296,5875603,10700415, 19487171,35489261,64631634,117704565] |