n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 32 |
4 | 182 |
5 | 1117 |
6 | 7280 |
7 | 49625 |
8 | 349998 |
9 | 2535077 |
10 | 18758264 |
11 | 141254654 |
12 | 1079364104 |
13 | 8350678169 |
14 | 65298467486 |
15 | 515349097712 |
16 | 4100346740510 |
17 | 32858696386765 |
18 | 265001681344568 |
19 | 2149447880547398 |
20 | 17524254766905368 |
21 | 143540915998174577 |
22 | 1180736721910617182 |
[1,6,32,182,1117,7280,49625,349998,2535077, 18758264,141254654,1079364104,8350678169, 65298467486,515349097712,4100346740510, 32858696386765,265001681344568,2149447880547398, 17524254766905368,143540915998174577, 1180736721910617182] |