n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 8 |
4 | 38 |
5 | 238 |
6 | 1828 |
7 | 16096 |
8 | 160604 |
9 | 1826684 |
10 | 23018264 |
11 | 316422304 |
12 | 4755059848 |
13 | 77084268712 |
14 | 1343682876272 |
15 | 25097562397952 |
16 | 498130253334032 |
17 | 10479084018025744 |
18 | 233353674153699616 |
19 | 5470193826634531456 |
20 | 134766983204541259616 |
21 | 3482705318091355591136 |
[1,1,2,8,38,238,1828,16096,160604,1826684, 23018264,316422304,4755059848,77084268712, 1343682876272,25097562397952,498130253334032, 10479084018025744,233353674153699616, 5470193826634531456,134766983204541259616, 3482705318091355591136] |