n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 2 |
6 | 4 |
7 | 2 |
8 | 12 |
9 | 38 |
10 | 60 |
11 | 76 |
12 | 90 |
13 | 480 |
14 | 564 |
15 | 1232 |
16 | 2150 |
17 | 2222 |
18 | 3156 |
19 | 4186 |
20 | 4352 |
21 | 9616 |
22 | 9862 |
23 | 11130 |
24 | 19848 |
25 | 21604 |
26 | 23108 |
27 | 44394 |
28 | 86136 |
29 | 110394 |
30 | 131936 |
31 | 215964 |
32 | 756708 |
33 | 859296 |
34 | 1257648 |
35 | 1398120 |
36 | 2976070 |
37 | 3021220 |
38 | 6972430 |
39 | 13466750 |
40 | 20995838 |
41 | 24036404 |
42 | 25964770 |
[0,0,0,0,2,4,2,12,38,60,76,90,480,564,1232,2150, 2222,3156,4186,4352,9616,9862,11130,19848,21604, 23108,44394,86136,110394,131936,215964,756708, 859296,1257648,1398120,2976070,3021220,6972430, 13466750,20995838,24036404,25964770] |