n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 43 |
3 | 336 |
4 | 2864 |
5 | 25326 |
6 | 223034 |
7 | 1890123 |
8 | 15115098 |
9 | 112980937 |
10 | 787320629 |
11 | 5121184083 |
12 | 31188412225 |
13 | 178517111561 |
14 | 964196387369 |
15 | 4933278065881 |
16 | 23997707450765 |
17 | 111358094980387 |
18 | 494444748602595 |
19 | 2106504840061571 |
[1,6,43,336,2864,25326,223034,1890123,15115098, 112980937,787320629,5121184083,31188412225, 178517111561,964196387369,4933278065881, 23997707450765,111358094980387,494444748602595, 2106504840061571] |