n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 6 |
6 | 10 |
7 | 36 |
8 | 64 |
9 | 220 |
10 | 468 |
11 | 1024 |
12 | 2052 |
13 | 7590 |
14 | 16224 |
15 | 50400 |
16 | 142800 |
17 | 246240 |
18 | 510300 |
19 | 2261952 |
20 | 3545856 |
21 | 14152320 |
22 | 40986000 |
23 | 68428800 |
24 | 178293960 |
25 | 784274400 |
26 | 1526805504 |
27 | 2782080000 |
28 | 9307872000 |
29 | 15858633600 |
30 | 28225260000 |
31 | 143730892800 |
32 | 225167040000 |
[1,1,1,2,6,10,36,64,220,468,1024,2052,7590,16224, 50400,142800,246240,510300,2261952,3545856, 14152320,40986000,68428800,178293960,784274400, 1526805504,2782080000,9307872000,15858633600, 28225260000,143730892800,225167040000] |