n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 47 |
3 | 244 |
4 | 1186 |
5 | 5536 |
6 | 25147 |
7 | 112028 |
8 | 491870 |
9 | 2135440 |
10 | 9188406 |
11 | 39249768 |
12 | 166656772 |
13 | 704069248 |
14 | 2961699667 |
15 | 12412521388 |
16 | 51854046982 |
17 | 216013684528 |
18 | 897632738722 |
19 | 3721813363288 |
20 | 15401045060572 |
21 | 63616796642368 |
22 | 262357557683422 |
23 | 1080387930269464 |
[1,8,47,244,1186,5536,25147,112028,491870,2135440, 9188406,39249768,166656772,704069248,2961699667, 12412521388,51854046982,216013684528,897632738722, 3721813363288,15401045060572,63616796642368, 262357557683422,1080387930269464] |