n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 30 |
3 | 420 |
4 | 5766 |
5 | 79356 |
6 | 1105868 |
7 | 15656200 |
8 | 225102726 |
9 | 3280346476 |
10 | 48334394756 |
11 | 718513364856 |
12 | 10756854024476 |
13 | 161965917024856 |
14 | 2450288410421976 |
15 | 37217243114489616 |
16 | 567231522298906566 |
17 | 8671114430550556236 |
18 | 132902927261011018836 |
19 | 2041798846285571043096 |
[1,2,30,420,5766,79356,1105868,15656200,225102726, 3280346476,48334394756,718513364856, 10756854024476,161965917024856,2450288410421976, 37217243114489616,567231522298906566, 8671114430550556236,132902927261011018836, 2041798846285571043096] |