n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 4 |
4 | 15 |
5 | 24 |
6 | 105 |
7 | 192 |
8 | 945 |
9 | 1920 |
10 | 10395 |
11 | 23040 |
12 | 135135 |
13 | 322560 |
14 | 2027025 |
15 | 5160960 |
16 | 34459425 |
17 | 92897280 |
18 | 654729075 |
19 | 1857945600 |
20 | 13749310575 |
21 | 40874803200 |
22 | 316234143225 |
23 | 980995276800 |
24 | 7905853580625 |
25 | 25505877196800 |
26 | 213458046676875 |
[1,1,3,4,15,24,105,192,945,1920,10395,23040, 135135,322560,2027025,5160960,34459425,92897280, 654729075,1857945600,13749310575,40874803200, 316234143225,980995276800,7905853580625, 25505877196800,213458046676875] |