n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 0 |
7 | 3 |
8 | 0 |
9 | 6 |
10 | 1 |
11 | 10 |
12 | 4 |
13 | 15 |
14 | 10 |
15 | 22 |
16 | 20 |
17 | 33 |
18 | 35 |
19 | 51 |
20 | 57 |
21 | 80 |
22 | 90 |
23 | 125 |
24 | 141 |
25 | 193 |
26 | 221 |
27 | 295 |
28 | 346 |
29 | 449 |
30 | 539 |
31 | 684 |
32 | 834 |
33 | 1045 |
34 | 1283 |
35 | 1600 |
36 | 1967 |
37 | 2451 |
38 | 3012 |
39 | 3752 |
40 | 4612 |
41 | 5738 |
42 | 7063 |
43 | 8770 |
44 | 10815 |
45 | 13403 |
46 | 16553 |
47 | 20488 |
48 | 25323 |
49 | 31326 |
50 | 38726 |
[0,0,0,0,1,0,3,0,6,1,10,4,15,10,22,20,33,35,51,57, 80,90,125,141,193,221,295,346,449,539,684,834, 1045,1283,1600,1967,2451,3012,3752,4612,5738,7063, 8770,10815,13403,16553,20488,25323,31326,38726] |