n | a(n) |
---|---|
1 | 0 |
2 | 6 |
3 | 30 |
4 | 126 |
5 | 1565 |
6 | 8190 |
7 | 131070 |
8 | 524286 |
9 | 7511964 |
10 | 89777599 |
11 | 2147483646 |
12 | 20166585982 |
13 | 840455563322 |
14 | 4787976306682 |
15 | 5519162753736 |
16 | 2617809209727498 |
17 | 334169564069012755 |
18 | 2305843009213693950 |
19 | 47306781863857413639 |
[0,6,30,126,1565,8190,131070,524286,7511964, 89777599,2147483646,20166585982,840455563322, 4787976306682,5519162753736,2617809209727498, 334169564069012755,2305843009213693950, 47306781863857413639] |