n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 12 |
6 | 35 |
7 | 104 |
8 | 343 |
9 | 1050 |
10 | 3070 |
11 | 6620 |
12 | 23449 |
13 | 38669 |
14 | 109104 |
15 | 279583 |
16 | 546893 |
17 | 827035 |
18 | 3057332 |
19 | 3381124 |
20 | 12126683 |
21 | 21921192 |
22 | 37008138 |
23 | 53327764 |
24 | 220908809 |
25 | 271293803 |
[1,1,2,5,12,35,104,343,1050,3070,6620,23449,38669, 109104,279583,546893,827035,3057332,3381124, 12126683,21921192,37008138,53327764,220908809, 271293803] |