Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 15 |
3 | 81 |
4 | 489 |
5 | 3237 |
6 | 23211 |
7 | 178707 |
8 | 1467051 |
9 | 12768345 |
10 | 117263829 |
11 | 1131901521 |
12 | 11444383251 |
13 | 120847326879 |
14 | 1329303053391 |
15 | 15197269729689 |
16 | 180211641841353 |
17 | 2212525627591533 |
18 | 28078380387448515 |
19 | 367782119667874083 |
20 | 4965441830591976339 |
21 | 69014083524412401873 |
22 | 986364827548578356421 |
[1,3,15,81,489,3237,23211,178707,1467051,12768345, 117263829,1131901521,11444383251,120847326879, 1329303053391,15197269729689,180211641841353, 2212525627591533,28078380387448515, 367782119667874083,4965441830591976339, 69014083524412401873,986364827548578356421] |