n | a(n) |
---|---|
1 | 3 |
2 | 75 |
3 | 969 |
4 | 8964 |
5 | 66975 |
6 | 429096 |
7 | 2442372 |
8 | 12640320 |
9 | 60454713 |
10 | 270391857 |
11 | 1141260315 |
12 | 4578160257 |
13 | 17554638039 |
14 | 64642406670 |
15 | 229486544439 |
16 | 788018124312 |
17 | 2624648438025 |
18 | 8499852952224 |
19 | 26820711864657 |
20 | 82613109082410 |
[3,75,969,8964,66975,429096,2442372,12640320, 60454713,270391857,1141260315,4578160257, 17554638039,64642406670,229486544439,788018124312, 2624648438025,8499852952224,26820711864657, 82613109082410] |