n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 2 |
4 | 3 |
5 | 6 |
6 | 12 |
7 | 24 |
8 | 39 |
9 | 51 |
10 | 138 |
11 | 276 |
12 | 543 |
13 | 1059 |
14 | 2019 |
15 | 3633 |
16 | 5790 |
17 | 7809 |
18 | 21405 |
19 | 42810 |
20 | 85611 |
21 | 171195 |
22 | 342291 |
23 | 684177 |
24 | 1366878 |
25 | 2729985 |
26 | 5444355 |
27 | 10824504 |
28 | 21392328 |
29 | 41760069 |
30 | 79442661 |
31 | 142937349 |
32 | 227824365 |
33 | 307267026 |
34 | 842358414 |
[1,3,2,3,6,12,24,39,51,138,276,543,1059,2019,3633, 5790,7809,21405,42810,85611,171195,342291,684177, 1366878,2729985,5444355,10824504,21392328, 41760069,79442661,142937349,227824365,307267026, 842358414] |