n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 44 |
4 | 184 |
5 | 790 |
6 | 3452 |
7 | 15278 |
8 | 68290 |
9 | 307696 |
10 | 1395696 |
11 | 6367199 |
12 | 29193025 |
13 | 134442102 |
14 | 621609060 |
15 | 2884432810 |
16 | 13428450520 |
17 | 62703991531 |
18 | 293606387095 |
19 | 1378309455352 |
20 | 6485734373020 |
21 | 30586630485443 |
22 | 144544075759391 |
23 | 684395988590939 |
[1,3,11,44,184,790,3452,15278,68290,307696, 1395696,6367199,29193025,134442102,621609060, 2884432810,13428450520,62703991531,293606387095, 1378309455352,6485734373020,30586630485443, 144544075759391,684395988590939] |