n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 4 |
6 | 15 |
7 | 37 |
8 | 87 |
9 | 200 |
10 | 448 |
11 | 992 |
12 | 2160 |
13 | 4628 |
14 | 9823 |
15 | 20699 |
16 | 43335 |
17 | 90246 |
18 | 187068 |
19 | 386192 |
20 | 794560 |
21 | 1629944 |
22 | 3334975 |
23 | 6808073 |
24 | 13870191 |
25 | 28207552 |
26 | 57274368 |
27 | 116129280 |
28 | 235165632 |
29 | 475678200 |
30 | 961190943 |
31 | 1940470231 |
32 | 3914210127 |
33 | 7889613022 |
34 | 15891777084 |
[0,0,0,0,0,4,15,37,87,200,448,992,2160,4628,9823, 20699,43335,90246,187068,386192,794560,1629944, 3334975,6808073,13870191,28207552,57274368, 116129280,235165632,475678200,961190943, 1940470231,3914210127,7889613022,15891777084] |