n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 5 |
3 | 26 |
4 | 83 |
5 | 203 |
6 | 456 |
7 | 853 |
8 | 1497 |
9 | 2477 |
10 | 3860 |
11 | 5690 |
12 | 8305 |
13 | 11470 |
14 | 15684 |
15 | 20947 |
16 | 27328 |
17 | 35057 |
18 | 44569 |
19 | 55569 |
20 | 68849 |
[1,0,5,26,83,203,456,853,1497,2477,3860,5690,8305, 11470,15684,20947,27328,35057,44569,55569,68849] |