n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 6 |
4 | 114 |
5 | 879 |
6 | 4284 |
7 | 15729 |
8 | 47565 |
9 | 124803 |
10 | 293733 |
11 | 634293 |
12 | 1277133 |
13 | 2426424 |
14 | 4389567 |
15 | 7615062 |
16 | 12739902 |
17 | 20647962 |
18 | 32540958 |
19 | 50023656 |
20 | 75205116 |
21 | 110817861 |
22 | 160356966 |
23 | 228241167 |
24 | 319998195 |
25 | 442476645 |
26 | 604086795 |
27 | 815072895 |
28 | 1087819551 |
[0,0,6,114,879,4284,15729,47565,124803,293733, 634293,1277133,2426424,4389567,7615062,12739902, 20647962,32540958,50023656,75205116,110817861, 160356966,228241167,319998195,442476645,604086795, 815072895,1087819551] |