n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 3 |
6 | 8 |
7 | 22 |
8 | 68 |
9 | 235 |
10 | 896 |
11 | 3700 |
12 | 16388 |
13 | 77424 |
14 | 388337 |
15 | 2058898 |
16 | 11494391 |
17 | 67345463 |
18 | 412884769 |
19 | 2641957682 |
20 | 17603708949 |
21 | 121891857559 |
22 | 875463364581 |
23 | 6511352351724 |
24 | 50074591410942 |
25 | 397627804820554 |
26 | 3256109939552809 |
27 | 27464891261741533 |
28 | 238366531369343096 |
29 | 2126510299723649140 |
30 | 19482346640311421722 |
31 | 183143139819128271540 |
32 | 1765079515780983078401 |
[0,0,0,0,1,3,8,22,68,235,896,3700,16388,77424, 388337,2058898,11494391,67345463,412884769, 2641957682,17603708949,121891857559,875463364581, 6511352351724,50074591410942,397627804820554, 3256109939552809,27464891261741533, 238366531369343096,2126510299723649140, 19482346640311421722,183143139819128271540, 1765079515780983078401] |