n | a(n) |
---|---|
0 | 1 |
1 | 15 |
2 | 115 |
3 | 915 |
4 | 7355 |
5 | 59369 |
6 | 479887 |
7 | 3880945 |
8 | 31391483 |
9 | 253929457 |
10 | 2054110259 |
11 | 16616430593 |
12 | 134416594859 |
13 | 1087347726489 |
14 | 8795978441155 |
15 | 71154097145873 |
16 | 575593242083915 |
17 | 4656198285106057 |
18 | 37665804590772499 |
19 | 304693389569808737 |
[1,15,115,915,7355,59369,479887,3880945,31391483, 253929457,2054110259,16616430593,134416594859, 1087347726489,8795978441155,71154097145873, 575593242083915,4656198285106057, 37665804590772499,304693389569808737] |