n | a(n) |
---|---|
6 | 1 |
7 | 21 |
8 | 56 |
9 | 1386 |
10 | 252 |
11 | 18942 |
12 | 28512 |
13 | 837837 |
14 | 122122 |
15 | 17600583 |
16 | 1445808 |
17 | 140411908 |
18 | 301302288 |
19 | 10781435088 |
20 | 79318464 |
21 | 333208994139 |
22 | 6813685494 |
23 | 597189699029 |
24 | 582524800704 |
25 | 89346032143830 |
26 | 3151550453480 |
27 | 1467268659100530 |
28 | 1095411461933880 |
29 | 45383787697612455 |
[1,21,56,1386,252,18942,28512,837837,122122, 17600583,1445808,140411908,301302288,10781435088, 79318464,333208994139,6813685494,597189699029, 582524800704,89346032143830,3151550453480, 1467268659100530,1095411461933880, 45383787697612455] |