n | a(n) |
---|---|
0 | 1 |
1 | 15 |
2 | 224 |
3 | 3345 |
4 | 49951 |
5 | 745920 |
6 | 11138849 |
7 | 166336815 |
8 | 2483913376 |
9 | 37092363825 |
10 | 553901543999 |
11 | 8271430796160 |
12 | 123517560398401 |
13 | 1844491975179855 |
14 | 27543862067299424 |
15 | 411313439034311505 |
[1,15,224,3345,49951,745920,11138849,166336815, 2483913376,37092363825,553901543999,8271430796160, 123517560398401,1844491975179855, 27543862067299424,411313439034311505] |