n | a(n) |
---|---|
1 | 21 |
2 | 36 |
3 | 300 |
4 | 722 |
5 | 2493 |
6 | 4766 |
7 | 9459 |
8 | 13091 |
9 | 18484 |
10 | 18779 |
11 | 18048 |
12 | 12995 |
13 | 9122 |
14 | 4424 |
15 | 2160 |
16 | 639 |
17 | 234 |
18 | 48 |
19 | 8 |
20 | 0 |
21 | 0 |
[21,36,300,722,2493,4766,9459,13091,18484,18779, 18048,12995,9122,4424,2160,639,234,48,8,0,0] |