n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 36 |
3 | 236 |
4 | 1686 |
5 | 13028 |
6 | 108078 |
7 | 956348 |
8 | 8976708 |
9 | 88962160 |
10 | 927129786 |
11 | 10125636716 |
12 | 115543526476 |
13 | 1373933166848 |
14 | 16985192456410 |
15 | 217851008508220 |
16 | 2893517713599370 |
17 | 39732264695056772 |
18 | 563187218351672330 |
19 | 8229159647194683140 |
20 | 123795221970087313340 |
[1,6,36,236,1686,13028,108078,956348,8976708, 88962160,927129786,10125636716,115543526476, 1373933166848,16985192456410,217851008508220, 2893517713599370,39732264695056772, 563187218351672330,8229159647194683140, 123795221970087313340] |