n | a(n) |
---|---|
0 | 1 |
1 | 40 |
2 | 780 |
3 | 7528 |
4 | 47878 |
5 | 225044 |
6 | 830270 |
7 | 2459376 |
8 | 5900602 |
9 | 11555200 |
10 | 18634704 |
11 | 24942742 |
12 | 27836859 |
13 | 25913910 |
14 | 20053913 |
15 | 12815608 |
16 | 6699888 |
17 | 2829786 |
18 | 948729 |
19 | 245756 |
20 | 47150 |
21 | 6276 |
22 | 518 |
23 | 20 |
[1,40,780,7528,47878,225044,830270,2459376, 5900602,11555200,18634704,24942742,27836859, 25913910,20053913,12815608,6699888,2829786,948729, 245756,47150,6276,518,20] |