n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 3 |
7 | 9 |
8 | 19 |
9 | 36 |
10 | 62 |
11 | 102 |
12 | 153 |
13 | 229 |
14 | 324 |
15 | 447 |
16 | 603 |
17 | 798 |
18 | 1029 |
19 | 1318 |
20 | 1657 |
21 | 2055 |
22 | 2528 |
23 | 3077 |
24 | 3699 |
25 | 4430 |
26 | 5250 |
27 | 6180 |
[0,0,0,0,1,3,9,19,36,62,102,153,229,324,447,603, 798,1029,1318,1657,2055,2528,3077,3699,4430,5250, 6180] |