n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 4 |
3 | 0 |
4 | 20 |
5 | 0 |
6 | 84 |
7 | 16 |
8 | 292 |
9 | 64 |
10 | 1172 |
11 | 272 |
12 | 4644 |
13 | 1344 |
14 | 19092 |
15 | 5392 |
16 | 76324 |
17 | 21824 |
18 | 305300 |
19 | 87312 |
20 | 1221156 |
21 | 349504 |
22 | 4885140 |
23 | 1398032 |
24 | 19540516 |
25 | 5592384 |
26 | 78162068 |
27 | 22369552 |
28 | 312648228 |
29 | 89478464 |
30 | 1250593428 |
31 | 357913872 |
32 | 5002373668 |
33 | 1431655744 |
34 | 20009494676 |
[1,0,4,0,20,0,84,16,292,64,1172,272,4644,1344, 19092,5392,76324,21824,305300,87312,1221156, 349504,4885140,1398032,19540516,5592384,78162068, 22369552,312648228,89478464,1250593428,357913872, 5002373668,1431655744,20009494676] |