n | a(n) |
---|---|
3 | 1 |
4 | 3 |
5 | 6 |
6 | 13 |
7 | 27 |
8 | 63 |
9 | 148 |
10 | 363 |
11 | 912 |
12 | 2330 |
13 | 6036 |
14 | 15825 |
15 | 41865 |
16 | 111636 |
17 | 299736 |
18 | 809513 |
19 | 2197728 |
20 | 5994219 |
21 | 16416748 |
22 | 45129396 |
23 | 124479270 |
24 | 344403494 |
25 | 955557780 |
26 | 2658061560 |
27 | 7411457963 |
28 | 20710700277 |
29 | 57992124810 |
30 | 162691293718 |
31 | 457219737027 |
32 | 1287065977413 |
[1,3,6,13,27,63,148,363,912,2330,6036,15825,41865, 111636,299736,809513,2197728,5994219,16416748, 45129396,124479270,344403494,955557780,2658061560, 7411457963,20710700277,57992124810,162691293718, 457219737027,1287065977413] |