n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 17 |
4 | 53 |
5 | 233 |
6 | 909 |
7 | 3361 |
8 | 14885 |
9 | 61241 |
10 | 242717 |
11 | 1085329 |
12 | 4598229 |
13 | 18926889 |
14 | 85303757 |
15 | 368267009 |
16 | 1552593669 |
17 | 7041525529 |
18 | 30802363261 |
19 | 132037599601 |
20 | 601853765429 |
21 | 2658662122505 |
22 | 11537150940205 |
23 | 52805458896097 |
24 | 235044956158053 |
25 | 1029638420961785 |
26 | 4728821380317661 |
27 | 21177107496077649 |
[1,1,5,17,53,233,909,3361,14885,61241,242717, 1085329,4598229,18926889,85303757,368267009, 1552593669,7041525529,30802363261,132037599601, 601853765429,2658662122505,11537150940205, 52805458896097,235044956158053,1029638420961785, 4728821380317661,21177107496077649] |