n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 2 |
5 | 3 |
6 | 4 |
7 | 7 |
8 | 14 |
9 | 27 |
10 | 48 |
11 | 82 |
12 | 140 |
13 | 242 |
14 | 420 |
15 | 726 |
16 | 1250 |
17 | 2153 |
18 | 3720 |
19 | 6446 |
20 | 11184 |
21 | 19408 |
22 | 33676 |
23 | 58431 |
24 | 101378 |
25 | 175861 |
26 | 304988 |
27 | 528800 |
28 | 916714 |
29 | 1589091 |
30 | 2754612 |
31 | 4775074 |
32 | 8277754 |
33 | 14350253 |
34 | 24878304 |
35 | 43131381 |
36 | 74777890 |
37 | 129645147 |
38 | 224770632 |
[0,0,0,1,2,3,4,7,14,27,48,82,140,242,420,726,1250, 2153,3720,6446,11184,19408,33676,58431,101378, 175861,304988,528800,916714,1589091,2754612, 4775074,8277754,14350253,24878304,43131381, 74777890,129645147,224770632] |