n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 1 |
7 | 18 |
8 | 159 |
9 | 942 |
10 | 4281 |
11 | 16050 |
12 | 51932 |
13 | 149532 |
14 | 391524 |
15 | 947246 |
16 | 2143677 |
17 | 4581204 |
18 | 9316195 |
19 | 18138636 |
20 | 33984912 |
21 | 61534652 |
22 | 108055425 |
23 | 184582014 |
24 | 307515038 |
25 | 500798058 |
26 | 798762453 |
27 | 1249917936 |
28 | 1921788036 |
29 | 2907159804 |
30 | 4332046200 |
31 | 6365441400 |
32 | 9232216725 |
[0,0,0,0,0,1,18,159,942,4281,16050,51932,149532, 391524,947246,2143677,4581204,9316195,18138636, 33984912,61534652,108055425,184582014,307515038, 500798058,798762453,1249917936,1921788036, 2907159804,4332046200,6365441400,9232216725] |