n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 3 |
4 | 4 |
5 | 5 |
6 | 21 |
7 | 49 |
8 | 92 |
9 | 237 |
10 | 595 |
11 | 1331 |
12 | 3169 |
13 | 7787 |
14 | 18487 |
15 | 44108 |
16 | 107036 |
17 | 258349 |
18 | 622371 |
19 | 1508239 |
20 | 3658679 |
21 | 8869465 |
22 | 21543005 |
23 | 52399612 |
24 | 127497281 |
25 | 310487855 |
26 | 756858661 |
27 | 1846060464 |
28 | 4505442967 |
29 | 11003284052 |
30 | 26887642756 |
31 | 65735882819 |
32 | 160795695676 |
[1,0,0,3,4,5,21,49,92,237,595,1331,3169,7787, 18487,44108,107036,258349,622371,1508239,3658679, 8869465,21543005,52399612,127497281,310487855, 756858661,1846060464,4505442967,11003284052, 26887642756,65735882819,160795695676] |