n | a(n) |
---|---|
1 | 1 |
2 | 18 |
3 | 65 |
4 | 716 |
5 | 6656 |
6 | 48781 |
7 | 406871 |
8 | 3133028 |
9 | 24130345 |
10 | 189393503 |
11 | 1456102356 |
12 | 11283273044 |
13 | 87512383136 |
14 | 676031229928 |
15 | 5235900900831 |
16 | 40524897463300 |
17 | 313511622285272 |
18 | 2426841120623568 |
19 | 18779980614275382 |
20 | 145331206525091820 |
[1,18,65,716,6656,48781,406871,3133028,24130345, 189393503,1456102356,11283273044,87512383136, 676031229928,5235900900831,40524897463300, 313511622285272,2426841120623568, 18779980614275382,145331206525091820] |