n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 2 |
6 | 6 |
7 | 2 |
8 | 18 |
9 | 54 |
10 | 30 |
11 | 36 |
12 | 576 |
13 | 127 |
14 | 840 |
15 | 928 |
16 | 3712 |
17 | 20160 |
18 | 93696 |
19 | 420480 |
20 | 800640 |
21 | 1305696 |
22 | 7983360 |
23 | 55056804 |
24 | 65318400 |
25 | 326592000 |
26 | 2286926400 |
27 | 2610934480 |
28 | 13680979200 |
29 | 18906930876 |
30 | 674165366496 |
31 | 326850970500 |
32 | 16753029012720 |
33 | 16880461678080 |
[0,1,1,2,2,6,2,18,54,30,36,576,127,840,928,3712, 20160,93696,420480,800640,1305696,7983360, 55056804,65318400,326592000,2286926400,2610934480, 13680979200,18906930876,674165366496,326850970500, 16753029012720,16880461678080] |