n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 24 |
5 | 64 |
6 | 184 |
7 | 536 |
8 | 1608 |
9 | 5104 |
10 | 16448 |
11 | 55136 |
12 | 187136 |
13 | 658624 |
14 | 2339648 |
15 | 8618208 |
16 | 31884640 |
17 | 121733120 |
18 | 468209408 |
19 | 1849540416 |
20 | 7342849216 |
[1,2,4,10,24,64,184,536,1608,5104,16448,55136, 187136,658624,2339648,8618208,31884640,121733120, 468209408,1849540416,7342849216] |