n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 666 |
5 | 36975 |
6 | 437517 |
7 | 2667375 |
8 | 11225145 |
9 | 37206936 |
10 | 104285790 |
11 | 257991042 |
12 | 579308220 |
13 | 1203756165 |
14 | 2347234131 |
15 | 4340067705 |
16 | 7670818467 |
17 | 13041558390 |
18 | 21436446060 |
19 | 34205577876 |
20 | 53166223470 |
21 | 80723690667 |
22 | 120014201385 |
23 | 175072295955 |
24 | 251025419421 |
[0,0,0,666,36975,437517,2667375,11225145,37206936, 104285790,257991042,579308220,1203756165, 2347234131,4340067705,7670818467,13041558390, 21436446060,34205577876,53166223470,80723690667, 120014201385,175072295955,251025419421] |