n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 3 |
5 | 33 |
6 | 338 |
7 | 3580 |
8 | 39525 |
9 | 452865 |
10 | 5354832 |
11 | 65022840 |
12 | 807560625 |
13 | 10224817515 |
14 | 131631305718 |
15 | 1719292293940 |
16 | 22743461653913 |
17 | 304256251541865 |
18 | 4111134671255120 |
19 | 56049154766899216 |
20 | 770325744569310630 |
21 | 10664613057653024586 |
22 | 148625522045319923940 |
[0,0,0,3,33,338,3580,39525,452865,5354832, 65022840,807560625,10224817515,131631305718, 1719292293940,22743461653913,304256251541865, 4111134671255120,56049154766899216, 770325744569310630,10664613057653024586, 148625522045319923940] |