n | a(n) |
---|---|
2 | 0 |
3 | 3 |
4 | 33 |
5 | 270 |
6 | 2025 |
7 | 14868 |
8 | 109851 |
9 | 827508 |
10 | 6397665 |
11 | 50932233 |
12 | 418175274 |
13 | 3542883864 |
14 | 30972408558 |
15 | 279287247333 |
16 | 2596195945977 |
17 | 24862074701208 |
18 | 245091667488207 |
19 | 2485294443056496 |
20 | 25903024863885465 |
21 | 277278282774462210 |
[0,3,33,270,2025,14868,109851,827508,6397665, 50932233,418175274,3542883864,30972408558, 279287247333,2596195945977,24862074701208, 245091667488207,2485294443056496, 25903024863885465,277278282774462210] |