n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 15 |
4 | 42 |
5 | 44 |
6 | 1365 |
7 | 3855 |
8 | 74898 |
9 | 44620 |
10 | 39672 |
11 | 195225786 |
12 | 616318176 |
13 | 26815350376 |
14 | 1186422030 |
15 | 663226400 |
16 | 1001874900 |
17 | 4885233465012400 |
18 | 1152921504606846975 |
19 | 10197205073773110 |
20 | 9758202933231640 |
21 | 2908370863958880 |
22 | 1152589154156603558 |
23 | 2895630705663782454386 |
24 | 103161669940448356241593685 |
[1,6,15,42,44,1365,3855,74898,44620,39672, 195225786,616318176,26815350376,1186422030, 663226400,1001874900,4885233465012400, 1152921504606846975,10197205073773110, 9758202933231640,2908370863958880, 1152589154156603558,2895630705663782454386, 103161669940448356241593685] |