n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 13 |
4 | 67 |
5 | 411 |
6 | 2911 |
7 | 23563 |
8 | 213543 |
9 | 2149927 |
10 | 23759791 |
11 | 286370151 |
12 | 3734929903 |
13 | 52455166063 |
14 | 788704078527 |
15 | 12648867695311 |
16 | 215433088624351 |
17 | 3884791172487903 |
18 | 73919882720901823 |
19 | 1480542628345939807 |
20 | 31128584449987511871 |
21 | 685635398619169059391 |
[1,3,13,67,411,2911,23563,213543,2149927,23759791, 286370151,3734929903,52455166063,788704078527, 12648867695311,215433088624351,3884791172487903, 73919882720901823,1480542628345939807, 31128584449987511871,685635398619169059391] |