n | a(n) |
---|---|
1 | 3 |
2 | 6 |
3 | 21 |
4 | 87 |
5 | 363 |
6 | 1491 |
7 | 6051 |
8 | 24387 |
9 | 97923 |
10 | 392451 |
11 | 1571331 |
12 | 6288387 |
13 | 25159683 |
14 | 100651011 |
15 | 402628611 |
16 | 1610563587 |
17 | 6442352643 |
18 | 25769607171 |
19 | 103078821891 |
20 | 412316073987 |
21 | 1649265868803 |
22 | 6597066620931 |
[3,6,21,87,363,1491,6051,24387,97923,392451, 1571331,6288387,25159683,100651011,402628611, 1610563587,6442352643,25769607171,103078821891, 412316073987,1649265868803,6597066620931] |