n | a(n) |
---|---|
1 | 21 |
2 | 23 |
3 | 67 |
4 | 259 |
5 | 1074 |
6 | 3788 |
7 | 13767 |
8 | 53839 |
9 | 201274 |
10 | 741275 |
11 | 2806825 |
12 | 10575217 |
13 | 39423977 |
14 | 147990910 |
15 | 556562343 |
16 | 2084799226 |
17 | 7816395336 |
18 | 29347218029 |
19 | 110071768648 |
20 | 412764006652 |
21 | 1548711236567 |
22 | 5809916135249 |
23 | 21791597835454 |
[21,23,67,259,1074,3788,13767,53839,201274,741275, 2806825,10575217,39423977,147990910,556562343, 2084799226,7816395336,29347218029,110071768648, 412764006652,1548711236567,5809916135249, 21791597835454] |