n | a(n) |
---|---|
1 | 10 |
2 | 90 |
3 | 616 |
4 | 3731 |
5 | 20208 |
6 | 102665 |
7 | 492118 |
8 | 2275947 |
9 | 10175908 |
10 | 44549594 |
11 | 190996160 |
12 | 808576340 |
13 | 3377247432 |
14 | 13999854480 |
15 | 57518174798 |
16 | 235275969669 |
17 | 956569084218 |
18 | 3879844758272 |
19 | 15670308778784 |
20 | 63219573247523 |
21 | 254277270362900 |
[10,90,616,3731,20208,102665,492118,2275947, 10175908,44549594,190996160,808576340,3377247432, 13999854480,57518174798,235275969669,956569084218, 3879844758272,15670308778784,63219573247523, 254277270362900] |