n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 23 |
3 | 192 |
4 | 1687 |
5 | 15253 |
6 | 140504 |
7 | 1311292 |
8 | 12357015 |
9 | 117318162 |
10 | 1120436273 |
11 | 10752242592 |
12 | 103596191608 |
13 | 1001494496863 |
14 | 9709576926716 |
15 | 94369011385192 |
16 | 919175964169623 |
17 | 8970063281146830 |
18 | 87685232945278010 |
19 | 858446087522807784 |
20 | 8415669293820893937 |
[1,3,23,192,1687,15253,140504,1311292,12357015, 117318162,1120436273,10752242592,103596191608, 1001494496863,9709576926716,94369011385192, 919175964169623,8970063281146830, 87685232945278010,858446087522807784, 8415669293820893937] |