n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 6 |
5 | 12 |
6 | 26 |
7 | 62 |
8 | 161 |
9 | 448 |
10 | 1338 |
11 | 4274 |
12 | 14524 |
13 | 52289 |
14 | 198678 |
15 | 794065 |
16 | 3328482 |
17 | 14594217 |
18 | 66779091 |
19 | 318205958 |
20 | 1575994324 |
21 | 8098891289 |
22 | 43115440260 |
23 | 237435483669 |
24 | 1350777074576 |
25 | 7928871324300 |
26 | 47965914249016 |
27 | 298735745451523 |
[1,2,3,6,12,26,62,161,448,1338,4274,14524,52289, 198678,794065,3328482,14594217,66779091,318205958, 1575994324,8098891289,43115440260,237435483669, 1350777074576,7928871324300,47965914249016, 298735745451523] |