n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 3 |
5 | 8 |
6 | 18 |
7 | 39 |
8 | 81 |
9 | 164 |
10 | 326 |
11 | 639 |
12 | 1239 |
13 | 2382 |
14 | 4548 |
15 | 8635 |
16 | 16319 |
17 | 30722 |
18 | 57650 |
19 | 107885 |
20 | 201425 |
21 | 375322 |
22 | 698162 |
23 | 1296801 |
24 | 2405707 |
25 | 4457984 |
26 | 8253228 |
27 | 15266969 |
28 | 28220967 |
29 | 52134000 |
30 | 96257558 |
31 | 177640983 |
32 | 327696621 |
33 | 604287700 |
34 | 1113981922 |
35 | 2053015399 |
[0,0,0,1,3,8,18,39,81,164,326,639,1239,2382,4548, 8635,16319,30722,57650,107885,201425,375322, 698162,1296801,2405707,4457984,8253228,15266969, 28220967,52134000,96257558,177640983,327696621, 604287700,1113981922,2053015399] |