n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 36 |
4 | 170 |
5 | 826 |
6 | 4088 |
7 | 20496 |
8 | 103752 |
9 | 529100 |
10 | 2714140 |
11 | 13989560 |
12 | 72393412 |
13 | 375877684 |
14 | 1957199120 |
15 | 10216355632 |
16 | 53443289946 |
17 | 280101010170 |
18 | 1470508417340 |
19 | 7731675774900 |
20 | 40706787482130 |
21 | 214580612067690 |
22 | 1132389348358320 |
23 | 5981916549623040 |
24 | 31629125981208600 |
[1,2,8,36,170,826,4088,20496,103752,529100, 2714140,13989560,72393412,375877684,1957199120, 10216355632,53443289946,280101010170, 1470508417340,7731675774900,40706787482130, 214580612067690,1132389348358320,5981916549623040, 31629125981208600] |