n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 24 |
4 | 170 |
5 | 240 |
6 | 2415 |
7 | 7000 |
8 | 30744 |
9 | 45360 |
10 | 741510 |
11 | 1108800 |
12 | 21673080 |
13 | 32744712 |
14 | 49684635 |
15 | 151351200 |
16 | 3932288360 |
17 | 6028102080 |
18 | 176061013128 |
19 | 271314186000 |
20 | 419047770960 |
21 | 648560072160 |
22 | 23130491854470 |
23 | 35929017476352 |
[1,2,9,24,170,240,2415,7000,30744,45360,741510, 1108800,21673080,32744712,49684635,151351200, 3932288360,6028102080,176061013128,271314186000, 419047770960,648560072160,23130491854470, 35929017476352] |