n | a(n) |
---|---|
0 | 1 |
1 | 15 |
2 | 113 |
3 | 783 |
4 | 5361 |
5 | 36879 |
6 | 255985 |
7 | 1794063 |
8 | 12689393 |
9 | 90505231 |
10 | 650379249 |
11 | 4705157135 |
12 | 34244198385 |
13 | 250572963855 |
14 | 1842382110705 |
15 | 13605619630095 |
16 | 100872203796465 |
17 | 750556607938575 |
18 | 5602962592235505 |
19 | 41952165966643215 |
[1,15,113,783,5361,36879,255985,1794063,12689393, 90505231,650379249,4705157135,34244198385, 250572963855,1842382110705,13605619630095, 100872203796465,750556607938575,5602962592235505, 41952165966643215] |