n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 47 |
3 | 420 |
4 | 4059 |
5 | 41316 |
6 | 436345 |
7 | 4737018 |
8 | 52535950 |
9 | 592667532 |
10 | 6779699073 |
11 | 78458218746 |
12 | 916886214115 |
13 | 10805128064100 |
14 | 128260666769895 |
15 | 1532180536574580 |
16 | 18405744106135914 |
17 | 222204347510440092 |
18 | 2694506677864591810 |
19 | 32804976554127379680 |
20 | 400837173223351237295 |
[1,6,47,420,4059,41316,436345,4737018,52535950, 592667532,6779699073,78458218746,916886214115, 10805128064100,128260666769895,1532180536574580, 18405744106135914,222204347510440092, 2694506677864591810,32804976554127379680, 400837173223351237295] |