n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 13 |
4 | 52 |
5 | 121 |
6 | 455 |
7 | 1093 |
8 | 4305 |
9 | 9841 |
10 | 36905 |
11 | 88573 |
12 | 348728 |
13 | 797161 |
14 | 2989355 |
15 | 7174453 |
16 | 28585712 |
17 | 64570081 |
18 | 242137805 |
19 | 581130733 |
20 | 2288202262 |
[1,5,13,52,121,455,1093,4305,9841,36905,88573, 348728,797161,2989355,7174453,28585712,64570081, 242137805,581130733,2288202262] |