n | a(n) |
---|---|
9 | 1 |
10 | 45 |
11 | 1320 |
12 | 32670 |
13 | 749463 |
14 | 16669653 |
15 | 368411615 |
16 | 8207628000 |
17 | 185953177553 |
18 | 4308105301929 |
19 | 102417740732658 |
20 | 2503858755467550 |
21 | 63030812099294896 |
22 | 1634980697246583456 |
23 | 43714229649594412832 |
[1,45,1320,32670,749463,16669653,368411615, 8207628000,185953177553,4308105301929, 102417740732658,2503858755467550, 63030812099294896,1634980697246583456, 43714229649594412832] |