n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 31 |
6 | 89 |
7 | 259 |
8 | 842 |
9 | 2810 |
10 | 10020 |
11 | 37266 |
12 | 145373 |
13 | 586071 |
14 | 2453927 |
15 | 10590180 |
16 | 47159351 |
17 | 215706629 |
18 | 1013916313 |
19 | 4882544468 |
20 | 24087770591 |
21 | 121481296510 |
22 | 626169893024 |
23 | 3293432146879 |
24 | 17670096206819 |
25 | 96589760733604 |
26 | 537731396393480 |
27 | 3045955783377644 |
[1,2,5,13,31,89,259,842,2810,10020,37266,145373, 586071,2453927,10590180,47159351,215706629, 1013916313,4882544468,24087770591,121481296510, 626169893024,3293432146879,17670096206819, 96589760733604,537731396393480,3045955783377644] |