n | a(n) |
---|---|
1 | 2 |
2 | 12 |
3 | 100 |
4 | 884 |
5 | 7812 |
6 | 68282 |
7 | 590254 |
8 | 5055858 |
9 | 42996954 |
10 | 363652198 |
11 | 3062704166 |
12 | 25711681080 |
13 | 215327121414 |
14 | 1799987423914 |
15 | 15026012170736 |
16 | 125307656075926 |
17 | 1044220994847456 |
18 | 8697261784264396 |
19 | 72413790737672880 |
20 | 602789200212580366 |
[2,12,100,884,7812,68282,590254,5055858,42996954, 363652198,3062704166,25711681080,215327121414, 1799987423914,15026012170736,125307656075926, 1044220994847456,8697261784264396, 72413790737672880,602789200212580366] |