n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 52 |
3 | 530 |
4 | 5919 |
5 | 70098 |
6 | 864784 |
7 | 10994490 |
8 | 143042020 |
9 | 1895316632 |
10 | 25487708844 |
11 | 346976558318 |
12 | 4772478619146 |
13 | 66222166440780 |
14 | 925880434336320 |
15 | 13030945427540170 |
16 | 184467676431001644 |
17 | 2624828100099166536 |
18 | 37521220349342729680 |
19 | 538573138719587026440 |
[1,6,52,530,5919,70098,864784,10994490,143042020, 1895316632,25487708844,346976558318,4772478619146, 66222166440780,925880434336320,13030945427540170, 184467676431001644,2624828100099166536, 37521220349342729680,538573138719587026440] |