n | a(n) |
---|---|
0 | 15 |
1 | 210 |
2 | 1750 |
3 | 11368 |
4 | 63805 |
5 | 325930 |
6 | 1561516 |
7 | 7150000 |
8 | 31682651 |
9 | 137031986 |
10 | 582035714 |
11 | 2438479592 |
12 | 10109790809 |
13 | 41579014154 |
14 | 169946747160 |
15 | 691299506640 |
16 | 2801567046135 |
17 | 11320801495410 |
18 | 45642930545070 |
19 | 183698923750440 |
[15,210,1750,11368,63805,325930,1561516,7150000, 31682651,137031986,582035714,2438479592, 10109790809,41579014154,169946747160,691299506640, 2801567046135,11320801495410,45642930545070, 183698923750440] |