n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 4 |
3 | 0 |
4 | 12 |
5 | 40 |
6 | 0 |
7 | 0 |
8 | 84 |
9 | 136 |
10 | 440 |
11 | 0 |
12 | 0 |
13 | 1864 |
14 | 0 |
15 | 0 |
16 | 3948 |
17 | 12776 |
18 | 10336 |
19 | 0 |
20 | 54120 |
21 | 0 |
22 | 0 |
23 | 0 |
24 | 0 |
25 | 900300 |
26 | 971144 |
27 | 0 |
28 | 0 |
29 | 4113832 |
30 | 0 |
31 | 0 |
32 | 8713236 |
33 | 0 |
34 | 45623096 |
35 | 0 |
36 | 59721408 |
37 | 193262536 |
38 | 0 |
39 | 0 |
40 | 818673240 |
41 | 1324641128 |
42 | 0 |
43 | 0 |
44 | 0 |
45 | 9079225360 |
46 | 0 |
47 | 0 |
48 | 0 |
49 | 31114968196 |
[1,4,4,0,12,40,0,0,84,136,440,0,0,1864,0,0,3948, 12776,10336,0,54120,0,0,0,0,900300,971144,0,0, 4113832,0,0,8713236,0,45623096,0,59721408, 193262536,0,0,818673240,1324641128,0,0,0, 9079225360,0,0,0,31114968196] |