n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 2 |
6 | 4 |
7 | 8 |
8 | 14 |
9 | 25 |
10 | 45 |
11 | 80 |
12 | 142 |
13 | 253 |
14 | 450 |
15 | 800 |
16 | 1423 |
17 | 2531 |
18 | 4501 |
19 | 8005 |
20 | 14237 |
21 | 25320 |
22 | 45031 |
23 | 80087 |
24 | 142433 |
25 | 253314 |
26 | 450514 |
27 | 801230 |
28 | 1424971 |
29 | 2534282 |
30 | 4507169 |
31 | 8015908 |
32 | 14256129 |
33 | 25354235 |
34 | 45091990 |
35 | 80195185 |
36 | 142625502 |
37 | 253656548 |
[0,0,0,1,2,4,8,14,25,45,80,142,253,450,800,1423, 2531,4501,8005,14237,25320,45031,80087,142433, 253314,450514,801230,1424971,2534282,4507169, 8015908,14256129,25354235,45091990,80195185, 142625502,253656548] |