n | a(n) |
---|---|
1 | 21 |
2 | 90 |
3 | 90 |
4 | 420 |
5 | 990 |
6 | 420 |
7 | 1992 |
8 | 11610 |
9 | 11610 |
10 | 1992 |
11 | 9552 |
12 | 139158 |
13 | 357354 |
14 | 139158 |
15 | 9552 |
16 | 45984 |
17 | 1686042 |
18 | 11206806 |
19 | 11206806 |
20 | 1686042 |
21 | 45984 |
22 | 221760 |
23 | 20537766 |
24 | 356391222 |
25 | 933306108 |
26 | 356391222 |
27 | 20537766 |
28 | 221760 |
29 | 1070208 |
30 | 250834914 |
[21,90,90,420,990,420,1992,11610,11610,1992,9552, 139158,357354,139158,9552,45984,1686042,11206806, 11206806,1686042,45984,221760,20537766,356391222, 933306108,356391222,20537766,221760,1070208, 250834914] |