n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 12 |
3 | 34 |
4 | 188 |
5 | 716 |
6 | 3312 |
7 | 13784 |
8 | 60688 |
9 | 259216 |
10 | 1125312 |
11 | 4842784 |
12 | 20938688 |
13 | 90305216 |
14 | 389997312 |
15 | 1683046784 |
16 | 7266066688 |
17 | 31362601216 |
18 | 135385869312 |
19 | 584397750784 |
20 | 2522654194688 |
21 | 10889285897216 |
22 | 47005113741312 |
[1,1,12,34,188,716,3312,13784,60688,259216, 1125312,4842784,20938688,90305216,389997312, 1683046784,7266066688,31362601216,135385869312, 584397750784,2522654194688,10889285897216, 47005113741312] |