n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 21 |
3 | 81 |
4 | 306 |
5 | 1161 |
6 | 4401 |
7 | 16686 |
8 | 63261 |
9 | 239841 |
10 | 909306 |
11 | 3447441 |
12 | 13070241 |
13 | 49553046 |
14 | 187869861 |
15 | 712268721 |
16 | 2700415746 |
17 | 10238053401 |
18 | 38815407441 |
19 | 147160382526 |
20 | 557927369901 |
21 | 2115263257281 |
22 | 8019571881546 |
23 | 30404505416481 |
24 | 115272231894081 |
[1,6,21,81,306,1161,4401,16686,63261,239841, 909306,3447441,13070241,49553046,187869861, 712268721,2700415746,10238053401,38815407441, 147160382526,557927369901,2115263257281, 8019571881546,30404505416481,115272231894081] |