n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 17 |
3 | 154 |
4 | 1066 |
5 | 6370 |
6 | 34748 |
7 | 178296 |
8 | 875976 |
9 | 4167669 |
10 | 19348175 |
11 | 88112310 |
12 | 395137470 |
13 | 1749894510 |
14 | 7669512840 |
15 | 33323053200 |
16 | 143720109360 |
17 | 615950596170 |
18 | 2625443201394 |
19 | 11137650267156 |
20 | 47051359045460 |
21 | 198038873490436 |
22 | 830820684414952 |
[0,1,17,154,1066,6370,34748,178296,875976,4167669, 19348175,88112310,395137470,1749894510,7669512840, 33323053200,143720109360,615950596170, 2625443201394,11137650267156,47051359045460, 198038873490436,830820684414952] |