Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 3 |
2 | 15 |
3 | 69 |
4 | 253 |
5 | 1049 |
6 | 4205 |
7 | 16887 |
8 | 68015 |
9 | 273471 |
10 | 1100135 |
11 | 4425449 |
12 | 17801365 |
13 | 71607677 |
14 | 288046417 |
15 | 1158686263 |
16 | 4660895899 |
17 | 18748771139 |
18 | 75418217399 |
19 | 303374944277 |
20 | 1220346484777 |
21 | 4908927310389 |
22 | 19746496259789 |
23 | 79431633434755 |
[3,15,69,253,1049,4205,16887,68015,273471,1100135, 4425449,17801365,71607677,288046417,1158686263, 4660895899,18748771139,75418217399,303374944277, 1220346484777,4908927310389,19746496259789, 79431633434755] |