n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 4 |
5 | 12 |
6 | 32 |
7 | 82 |
8 | 208 |
9 | 528 |
10 | 1344 |
11 | 3428 |
12 | 8752 |
13 | 22352 |
14 | 57088 |
15 | 145800 |
16 | 372352 |
17 | 950912 |
18 | 2428416 |
19 | 6201616 |
20 | 15837504 |
21 | 40445376 |
22 | 103288320 |
23 | 263775008 |
24 | 673621760 |
25 | 1720277760 |
26 | 4393200640 |
27 | 11219241536 |
28 | 28651407104 |
29 | 73169217792 |
30 | 186857644032 |
31 | 477192188032 |
[0,0,0,1,4,12,32,82,208,528,1344,3428,8752,22352, 57088,145800,372352,950912,2428416,6201616, 15837504,40445376,103288320,263775008,673621760, 1720277760,4393200640,11219241536,28651407104, 73169217792,186857644032,477192188032] |