Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 9 |
2 | 81 |
3 | 221 |
4 | 636 |
5 | 2234 |
6 | 6315 |
7 | 16812 |
8 | 47596 |
9 | 129150 |
10 | 337186 |
11 | 892181 |
12 | 2343529 |
13 | 6046508 |
14 | 15601217 |
15 | 40205083 |
16 | 102833093 |
17 | 262404045 |
18 | 669166152 |
19 | 1701139222 |
20 | 4316129307 |
21 | 10943611348 |
22 | 27709283328 |
23 | 70072708774 |
24 | 177098593806 |
25 | 447280003769 |
[9,81,221,636,2234,6315,16812,47596,129150,337186, 892181,2343529,6046508,15601217,40205083, 102833093,262404045,669166152,1701139222, 4316129307,10943611348,27709283328,70072708774, 177098593806,447280003769] |