n | a(n) |
---|---|
4 | 1 |
5 | 1 |
6 | 3 |
7 | 6 |
8 | 15 |
9 | 33 |
10 | 83 |
11 | 202 |
12 | 527 |
13 | 1377 |
14 | 3744 |
15 | 10335 |
16 | 29297 |
17 | 84396 |
18 | 248034 |
19 | 740289 |
20 | 2245094 |
21 | 6904206 |
22 | 21522973 |
23 | 67936799 |
24 | 217026480 |
25 | 701159919 |
26 | 2289925258 |
27 | 7556363054 |
28 | 25184139149 |
29 | 84743377436 |
30 | 287815771822 |
31 | 986345040471 |
32 | 3409869008578 |
[1,1,3,6,15,33,83,202,527,1377,3744,10335,29297, 84396,248034,740289,2245094,6904206,21522973, 67936799,217026480,701159919,2289925258, 7556363054,25184139149,84743377436,287815771822, 986345040471,3409869008578] |