n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 66 |
4 | 920 |
5 | 6350 |
6 | 29505 |
7 | 106036 |
8 | 317856 |
9 | 832140 |
10 | 1961025 |
11 | 4248310 |
12 | 8590296 |
13 | 16398746 |
14 | 29814785 |
15 | 51983400 |
16 | 87399040 |
17 | 142333656 |
18 | 225359361 |
19 | 347978730 |
20 | 525376600 |
21 | 777308070 |
22 | 1129138241 |
23 | 1613050076 |
24 | 2269437600 |
[0,1,66,920,6350,29505,106036,317856,832140, 1961025,4248310,8590296,16398746,29814785, 51983400,87399040,142333656,225359361,347978730, 525376600,777308070,1129138241,1613050076, 2269437600] |