n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 18 |
7 | 381 |
8 | 7601 |
9 | 160784 |
10 | 3621067 |
11 | 87089383 |
12 | 2235081950 |
13 | 61129825519 |
14 | 1778536033055 |
15 | 54930050817476 |
16 | 1796853497380257 |
17 | 62110926582550043 |
18 | 2263534922105574576 |
19 | 86779223311878261139 |
20 | 3492564794206986891273 |
21 | 147269976213917444452508 |
[1,0,0,0,0,1,18,381,7601,160784,3621067,87089383, 2235081950,61129825519,1778536033055, 54930050817476,1796853497380257,62110926582550043, 2263534922105574576,86779223311878261139, 3492564794206986891273,147269976213917444452508] |