Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 27 |
4 | 136 |
5 | 680 |
6 | 3402 |
7 | 17011 |
8 | 85055 |
9 | 425277 |
10 | 2126386 |
11 | 10631930 |
12 | 53159652 |
13 | 265798261 |
14 | 1328991305 |
15 | 6644956527 |
16 | 33224782636 |
17 | 166123913180 |
18 | 830619565902 |
19 | 4153097829511 |
20 | 20765489147555 |
21 | 103827445737777 |
22 | 519137228688886 |
[1,5,27,136,680,3402,17011,85055,425277,2126386, 10631930,53159652,265798261,1328991305,6644956527, 33224782636,166123913180,830619565902, 4153097829511,20765489147555,103827445737777, 519137228688886] |