n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 10 |
5 | 39 |
6 | 160 |
7 | 702 |
8 | 3177 |
9 | 14830 |
10 | 70678 |
11 | 342860 |
12 | 1686486 |
13 | 8393681 |
14 | 42187148 |
15 | 213828802 |
16 | 1091711076 |
17 | 5609297942 |
18 | 28982708389 |
19 | 150496728594 |
20 | 784952565145 |
21 | 4110491658233 |
22 | 21602884608167 |
23 | 113907912618599 |
24 | 602414753753310 |
25 | 3194684310627727 |
26 | 16984594260224529 |
[1,1,3,10,39,160,702,3177,14830,70678,342860, 1686486,8393681,42187148,213828802,1091711076, 5609297942,28982708389,150496728594,784952565145, 4110491658233,21602884608167,113907912618599, 602414753753310,3194684310627727, 16984594260224529] |