n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 2 |
6 | 0 |
7 | 5 |
8 | 0 |
9 | 14 |
10 | 0 |
11 | 42 |
12 | 0 |
13 | 132 |
14 | 0 |
15 | 429 |
16 | 0 |
17 | 1430 |
18 | 0 |
19 | 4862 |
20 | 0 |
21 | 16796 |
22 | 0 |
23 | 58786 |
24 | 0 |
25 | 208012 |
26 | 0 |
27 | 742900 |
28 | 0 |
29 | 2674440 |
30 | 0 |
31 | 9694845 |
32 | 0 |
33 | 35357670 |
34 | 0 |
35 | 129644790 |
36 | 0 |
37 | 477638700 |
38 | 0 |
39 | 1767263190 |
40 | 0 |
41 | 6564120420 |
42 | 0 |
43 | 24466267020 |
44 | 0 |
45 | 91482563640 |
46 | 0 |
47 | 343059613650 |
48 | 0 |
[1,1,0,1,0,2,0,5,0,14,0,42,0,132,0,429,0,1430,0, 4862,0,16796,0,58786,0,208012,0,742900,0,2674440, 0,9694845,0,35357670,0,129644790,0,477638700,0, 1767263190,0,6564120420,0,24466267020,0, 91482563640,0,343059613650,0] |