n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 31 |
4 | 373 |
5 | 6250 |
6 | 136711 |
7 | 3740137 |
8 | 124143598 |
9 | 4887140221 |
10 | 224203589593 |
11 | 11819532185476 |
12 | 707883494843341 |
13 | 47708648339054629 |
14 | 3589347850731252292 |
15 | 299381557667730507907 |
16 | 27518788652896695773041 |
[1,1,4,31,373,6250,136711,3740137,124143598, 4887140221,224203589593,11819532185476, 707883494843341,47708648339054629, 3589347850731252292,299381557667730507907, 27518788652896695773041] |