Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 3 |
2 | 15 |
3 | 41 |
4 | 120 |
5 | 465 |
6 | 1472 |
7 | 4667 |
8 | 16230 |
9 | 53266 |
10 | 173851 |
11 | 584543 |
12 | 1934414 |
13 | 6378634 |
14 | 21232506 |
15 | 70378723 |
16 | 232896476 |
17 | 772967540 |
18 | 2562676394 |
19 | 8490559710 |
20 | 28155930393 |
21 | 93345299815 |
22 | 309390211243 |
23 | 1025742299033 |
24 | 3400526966741 |
25 | 11272379148340 |
[3,15,41,120,465,1472,4667,16230,53266,173851, 584543,1934414,6378634,21232506,70378723, 232896476,772967540,2562676394,8490559710, 28155930393,93345299815,309390211243, 1025742299033,3400526966741,11272379148340] |