n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 40 |
4 | 368 |
5 | 1704 |
6 | 5704 |
7 | 15400 |
8 | 36096 |
9 | 75632 |
10 | 145968 |
11 | 263592 |
12 | 451392 |
13 | 738360 |
14 | 1163552 |
15 | 1774840 |
16 | 2632344 |
17 | 3808992 |
18 | 5394752 |
19 | 7493936 |
20 | 10233832 |
21 | 13759008 |
22 | 18241312 |
23 | 23877984 |
24 | 30896984 |
25 | 39551456 |
26 | 50137240 |
27 | 62983128 |
28 | 78459880 |
[0,0,40,368,1704,5704,15400,36096,75632,145968, 263592,451392,738360,1163552,1774840,2632344, 3808992,5394752,7493936,10233832,13759008, 18241312,23877984,30896984,39551456,50137240, 62983128,78459880] |