n | a(n) |
---|---|
0 | 1 |
1 | 15 |
2 | 115 |
3 | 735 |
4 | 5435 |
5 | 40965 |
6 | 315991 |
7 | 2469909 |
8 | 19495747 |
9 | 154956453 |
10 | 1237813755 |
11 | 9923510469 |
12 | 79762415747 |
13 | 642295225197 |
14 | 5178982417003 |
15 | 41798669030805 |
16 | 337575342572995 |
17 | 2727627544083901 |
18 | 22046802610388635 |
19 | 178241899736229829 |
[1,15,115,735,5435,40965,315991,2469909,19495747, 154956453,1237813755,9923510469,79762415747, 642295225197,5178982417003,41798669030805, 337575342572995,2727627544083901, 22046802610388635,178241899736229829] |