n | a(n) |
---|---|
1 | 5 |
2 | 25 |
3 | 120 |
4 | 580 |
5 | 2780 |
6 | 13300 |
7 | 63420 |
8 | 301780 |
9 | 1433180 |
10 | 6795700 |
11 | 32180220 |
12 | 152216980 |
13 | 719335580 |
14 | 3396714100 |
15 | 16028713020 |
16 | 75595396180 |
17 | 356358069980 |
18 | 1679206088500 |
19 | 7909957661820 |
20 | 37249421039380 |
21 | 175371521796380 |
22 | 825484323238900 |
[5,25,120,580,2780,13300,63420,301780,1433180, 6795700,32180220,152216980,719335580,3396714100, 16028713020,75595396180,356358069980, 1679206088500,7909957661820,37249421039380, 175371521796380,825484323238900] |