n | a(n) |
---|---|
3 | 0 |
4 | 1 |
5 | 3 |
6 | 3 |
7 | 10 |
8 | 27 |
9 | 51 |
10 | 105 |
11 | 276 |
12 | 624 |
13 | 1352 |
14 | 3249 |
15 | 8234 |
16 | 20078 |
17 | 49502 |
18 | 128483 |
19 | 332677 |
20 | 855128 |
21 | 2241638 |
22 | 5916430 |
23 | 15555813 |
24 | 41112959 |
25 | 109117445 |
26 | 289434235 |
27 | 768896971 |
28 | 2047282146 |
29 | 5455894198 |
30 | 14556394537 |
31 | 38898123662 |
[0,1,3,3,10,27,51,105,276,624,1352,3249,8234, 20078,49502,128483,332677,855128,2241638,5916430, 15555813,41112959,109117445,289434235,768896971, 2047282146,5455894198,14556394537,38898123662] |