n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 25 |
4 | 219 |
5 | 1596 |
6 | 19844 |
7 | 208377 |
8 | 3394835 |
9 | 46799236 |
10 | 886886076 |
11 | 15668835975 |
12 | 366602236558 |
13 | 7582277939549 |
14 | 199035634246870 |
15 | 4962275379320665 |
16 | 150339081311823341 |
17 | 4214812414260868163 |
18 | 141823733752997729872 |
19 | 4533014863242019822308 |
20 | 169587948261109794026999 |
[0,1,5,25,219,1596,19844,208377,3394835,46799236, 886886076,15668835975,366602236558,7582277939549, 199035634246870,4962275379320665, 150339081311823341,4214812414260868163, 141823733752997729872,4533014863242019822308, 169587948261109794026999] |