n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 52 |
4 | 468 |
5 | 5372 |
6 | 74948 |
7 | 1230812 |
8 | 23251908 |
9 | 496661532 |
10 | 11834467588 |
11 | 311195370972 |
12 | 8950935130948 |
13 | 279540192840092 |
14 | 9419760953149828 |
15 | 340658973061341532 |
16 | 13160048773006619588 |
17 | 540850933969855649052 |
18 | 23561995002376443953668 |
[1,2,8,52,468,5372,74948,1230812,23251908, 496661532,11834467588,311195370972,8950935130948, 279540192840092,9419760953149828, 340658973061341532,13160048773006619588, 540850933969855649052,23561995002376443953668] |