n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 25 |
5 | 66 |
6 | 154 |
7 | 372 |
8 | 837 |
9 | 1930 |
10 | 4246 |
11 | 9516 |
12 | 20618 |
13 | 45332 |
14 | 97140 |
15 | 210664 |
16 | 447661 |
17 | 960858 |
18 | 2028478 |
19 | 4319100 |
20 | 9070110 |
21 | 19188796 |
22 | 40122028 |
23 | 84438360 |
24 | 175913250 |
25 | 368603716 |
26 | 765561564 |
27 | 1598231992 |
28 | 3310623412 |
29 | 6889682280 |
30 | 14238676712 |
31 | 29551095248 |
[0,1,3,10,25,66,154,372,837,1930,4246,9516,20618, 45332,97140,210664,447661,960858,2028478,4319100, 9070110,19188796,40122028,84438360,175913250, 368603716,765561564,1598231992,3310623412, 6889682280,14238676712,29551095248] |