n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 2 |
6 | 1 |
7 | 4 |
8 | 4 |
9 | 12 |
10 | 15 |
11 | 34 |
12 | 55 |
13 | 110 |
14 | 190 |
15 | 370 |
16 | 664 |
17 | 1272 |
18 | 2350 |
19 | 4466 |
20 | 8372 |
21 | 15926 |
22 | 30105 |
23 | 57390 |
24 | 109202 |
25 | 208738 |
26 | 398985 |
27 | 764906 |
28 | 1467370 |
29 | 2820770 |
30 | 5427543 |
31 | 10459456 |
32 | 20176561 |
33 | 38969684 |
34 | 75339232 |
35 | 145804978 |
36 | 282429242 |
37 | 547573768 |
38 | 1062501151 |
39 | 2063317650 |
[1,0,1,0,2,1,4,4,12,15,34,55,110,190,370,664,1272, 2350,4466,8372,15926,30105,57390,109202,208738, 398985,764906,1467370,2820770,5427543,10459456, 20176561,38969684,75339232,145804978,282429242, 547573768,1062501151,2063317650] |