n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 2 |
5 | 4 |
6 | 9 |
7 | 18 |
8 | 28 |
9 | 57 |
10 | 101 |
11 | 196 |
12 | 338 |
13 | 615 |
14 | 1145 |
15 | 2137 |
16 | 3951 |
17 | 7000 |
18 | 12924 |
19 | 21333 |
20 | 40977 |
21 | 73280 |
22 | 130838 |
23 | 222453 |
24 | 376848 |
25 | 718691 |
26 | 1279333 |
27 | 2213812 |
28 | 4093786 |
29 | 6874504 |
30 | 12954041 |
31 | 21856176 |
32 | 35813344 |
33 | 64747414 |
34 | 104335236 |
35 | 196237851 |
36 | 353075057 |
[0,0,1,2,4,9,18,28,57,101,196,338,615,1145,2137, 3951,7000,12924,21333,40977,73280,130838,222453, 376848,718691,1279333,2213812,4093786,6874504, 12954041,21856176,35813344,64747414,104335236, 196237851,353075057] |