n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 12 |
4 | 56 |
5 | 284 |
6 | 1516 |
7 | 8384 |
8 | 47600 |
9 | 275808 |
10 | 1624352 |
11 | 9694912 |
12 | 58510912 |
13 | 356467392 |
14 | 2189331648 |
15 | 13540880384 |
16 | 84265071360 |
17 | 527232146944 |
18 | 3314742364672 |
19 | 20930141861888 |
20 | 132673039491072 |
21 | 843959152564224 |
22 | 5385800362473472 |
23 | 34470606645280768 |
24 | 221213787774230528 |
25 | 1423139139514138624 |
[1,1,3,12,56,284,1516,8384,47600,275808,1624352, 9694912,58510912,356467392,2189331648,13540880384, 84265071360,527232146944,3314742364672, 20930141861888,132673039491072,843959152564224, 5385800362473472,34470606645280768, 221213787774230528,1423139139514138624] |