n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 26 |
4 | 255 |
5 | 3642 |
6 | 75606 |
7 | 2316169 |
8 | 106289210 |
9 | 7321773414 |
10 | 748425136289 |
11 | 111576624613588 |
12 | 23864968806932886 |
13 | 7225895692327786931 |
14 | 3064182503223082011556 |
15 | 1803904252801640389374494 |
16 | 1463405916763710662849541695 |
17 | 1625522872429294851288338156654 |
[1,1,4,26,255,3642,75606,2316169,106289210, 7321773414,748425136289,111576624613588, 23864968806932886,7225895692327786931, 3064182503223082011556,1803904252801640389374494, 1463405916763710662849541695, 1625522872429294851288338156654] |