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 | 1 |
16 | 0 |
17 | 2 |
18 | 1 |
19 | 4 |
20 | 4 |
21 | 10 |
22 | 10 |
23 | 21 |
24 | 25 |
25 | 45 |
26 | 56 |
27 | 94 |
28 | 122 |
29 | 195 |
30 | 258 |
31 | 394 |
32 | 532 |
33 | 794 |
34 | 1076 |
35 | 1574 |
36 | 2151 |
37 | 3095 |
38 | 4242 |
39 | 6037 |
40 | 8285 |
41 | 11693 |
42 | 16060 |
43 | 22502 |
44 | 30925 |
45 | 43117 |
46 | 59230 |
47 | 82260 |
48 | 113005 |
49 | 156467 |
50 | 214924 |
51 | 296968 |
52 | 407915 |
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,2,1,4,4,10,10,21, 25,45,56,94,122,195,258,394,532,794,1076,1574, 2151,3095,4242,6037,8285,11693,16060,22502,30925, 43117,59230,82260,113005,156467,214924,296968, 407915] |