n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 44 |
3 | 360 |
4 | 3088 |
5 | 26976 |
6 | 237248 |
7 | 2091648 |
8 | 18456832 |
9 | 162915840 |
10 | 1438198784 |
11 | 12696741888 |
12 | 112091336704 |
13 | 989587267584 |
14 | 8736489783296 |
15 | 77129433907200 |
16 | 680931492954112 |
17 | 6011553766047744 |
18 | 53072563389857792 |
19 | 468547255228956672 |
[1,6,44,360,3088,26976,237248,2091648,18456832, 162915840,1438198784,12696741888,112091336704, 989587267584,8736489783296,77129433907200, 680931492954112,6011553766047744, 53072563389857792,468547255228956672] |