n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 12 |
3 | 4 |
4 | 128 |
5 | 384 |
6 | 3404 |
7 | 740 |
8 | 37056 |
9 | 127296 |
10 | 794316 |
11 | 286532 |
12 | 8510656 |
13 | 25560896 |
14 | 224057484 |
15 | 42076324 |
16 | 2446214016 |
17 | 8430013568 |
18 | 51732969356 |
19 | 18062215300 |
20 | 553213409792 |
21 | 1655549411840 |
22 | 14630859361996 |
23 | 3227756349540 |
24 | 159219183713088 |
25 | 546944274202816 |
26 | 3411332163636556 |
27 | 1231354981057220 |
28 | 36554500089286208 |
29 | 109782277571646400 |
30 | 962314238681316620 |
[0,0,12,4,128,384,3404,740,37056,127296,794316, 286532,8510656,25560896,224057484,42076324, 2446214016,8430013568,51732969356,18062215300, 553213409792,1655549411840,14630859361996, 3227756349540,159219183713088,546944274202816, 3411332163636556,1231354981057220, 36554500089286208,109782277571646400, 962314238681316620] |