n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 32 |
3 | 229 |
4 | 1845 |
5 | 14320 |
6 | 112485 |
7 | 880163 |
8 | 6895792 |
9 | 54003765 |
10 | 422983905 |
11 | 3312866080 |
12 | 25947198337 |
13 | 203223953179 |
14 | 1591695681488 |
15 | 12466511517581 |
16 | 97640484615909 |
17 | 764741896529104 |
18 | 5989627994067061 |
19 | 46912093390144139 |
20 | 367425909133064576 |
21 | 2877761124002870925 |
[1,3,32,229,1845,14320,112485,880163,6895792, 54003765,422983905,3312866080,25947198337, 203223953179,1591695681488,12466511517581, 97640484615909,764741896529104,5989627994067061, 46912093390144139,367425909133064576, 2877761124002870925] |