n | a(n) |
---|---|
0 | 6 |
1 | 0 |
2 | 2 |
3 | 12 |
4 | 6 |
5 | 20 |
6 | 50 |
7 | 56 |
8 | 134 |
9 | 264 |
10 | 402 |
11 | 836 |
12 | 1542 |
13 | 2652 |
14 | 5154 |
15 | 9392 |
16 | 16902 |
17 | 31824 |
18 | 58082 |
19 | 106172 |
20 | 197126 |
21 | 360932 |
22 | 662994 |
23 | 1223784 |
24 | 2245766 |
25 | 4130520 |
26 | 7606770 |
27 | 13976436 |
28 | 25711622 |
29 | 47310252 |
30 | 86978370 |
31 | 160002656 |
32 | 294324230 |
33 | 541249952 |
[6,0,2,12,6,20,50,56,134,264,402,836,1542,2652, 5154,9392,16902,31824,58082,106172,197126,360932, 662994,1223784,2245766,4130520,7606770,13976436, 25711622,47310252,86978370,160002656,294324230, 541249952] |