n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 0 |
10 | 0 |
11 | 0 |
12 | 0 |
13 | 0 |
14 | 0 |
15 | 0 |
16 | 0 |
17 | 0 |
18 | 8 |
19 | 24 |
20 | 80 |
21 | 206 |
22 | 504 |
23 | 1004 |
24 | 1910 |
25 | 3380 |
26 | 5688 |
27 | 9036 |
28 | 14106 |
29 | 21190 |
30 | 31158 |
31 | 44370 |
32 | 62206 |
33 | 85308 |
34 | 115662 |
35 | 153746 |
36 | 202146 |
37 | 262156 |
38 | 336960 |
39 | 427488 |
40 | 538690 |
41 | 671604 |
42 | 831926 |
43 | 1021238 |
44 | 1246604 |
45 | 1510056 |
46 | 1820580 |
47 | 2179480 |
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,24,80,206, 504,1004,1910,3380,5688,9036,14106,21190,31158, 44370,62206,85308,115662,153746,202146,262156, 336960,427488,538690,671604,831926,1021238, 1246604,1510056,1820580,2179480] |