n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 22 |
4 | 126 |
5 | 2260 |
6 | 37638 |
7 | 1480106 |
8 | 106342556 |
9 | 9320003978 |
10 | 2071042581066 |
11 | 633815351419648 |
12 | 361949253722666782 |
13 | 381075059450207446426 |
14 | 651096057826702043966544 |
15 | 2118270096010218021292121870 |
[2,4,22,126,2260,37638,1480106,106342556, 9320003978,2071042581066,633815351419648, 361949253722666782,381075059450207446426, 651096057826702043966544, 2118270096010218021292121870] |