n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 44 |
3 | 220 |
4 | 900 |
5 | 3776 |
6 | 15392 |
7 | 62128 |
8 | 250116 |
9 | 1001704 |
10 | 4007524 |
11 | 16042116 |
12 | 64173160 |
13 | 256653648 |
14 | 1026693944 |
15 | 4106769456 |
[1,8,44,220,900,3776,15392,62128,250116,1001704, 4007524,16042116,64173160,256653648,1026693944, 4106769456] |