n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 3 |
6 | 4 |
7 | 9 |
8 | 14 |
9 | 28 |
10 | 48 |
11 | 93 |
12 | 165 |
13 | 315 |
14 | 576 |
15 | 1091 |
16 | 2032 |
17 | 3855 |
18 | 7252 |
19 | 13797 |
20 | 26163 |
21 | 49929 |
22 | 95232 |
23 | 182361 |
24 | 349350 |
25 | 671088 |
26 | 1290240 |
27 | 2485504 |
28 | 4792905 |
29 | 9256395 |
30 | 17894588 |
31 | 34636833 |
32 | 67106816 |
33 | 130150493 |
34 | 252641280 |
35 | 490853403 |
36 | 954429840 |
37 | 1857283155 |
38 | 3616800768 |
39 | 7048151355 |
40 | 13743869130 |
41 | 26817356775 |
[1,0,1,1,3,4,9,14,28,48,93,165,315,576,1091,2032, 3855,7252,13797,26163,49929,95232,182361,349350, 671088,1290240,2485504,4792905,9256395,17894588, 34636833,67106816,130150493,252641280,490853403, 954429840,1857283155,3616800768,7048151355, 13743869130,26817356775] |