n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 4 |
7 | 8 |
8 | 16 |
9 | 34 |
10 | 82 |
11 | 226 |
12 | 678 |
13 | 2108 |
14 | 6892 |
15 | 23948 |
16 | 88532 |
17 | 344816 |
18 | 1401200 |
19 | 5925000 |
20 | 26146360 |
21 | 120743496 |
22 | 582606552 |
23 | 2926675112 |
24 | 15259183112 |
25 | 82458502624 |
26 | 461577781968 |
27 | 2674216518016 |
28 | 16013654472352 |
29 | 98968416103968 |
30 | 630595248710144 |
[1,1,1,1,1,2,4,8,16,34,82,226,678,2108,6892,23948, 88532,344816,1401200,5925000,26146360,120743496, 582606552,2926675112,15259183112,82458502624, 461577781968,2674216518016,16013654472352, 98968416103968,630595248710144] |