Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 25 |
4 | 195 |
5 | 1781 |
6 | 20043 |
7 | 260317 |
8 | 3881083 |
9 | 64978861 |
10 | 1209674883 |
11 | 24764370533 |
12 | 553130762451 |
13 | 13383468009445 |
14 | 348741065652619 |
15 | 9736370899180813 |
16 | 289948812396124875 |
17 | 9174320178178480829 |
18 | 307362076657095903411 |
19 | 10869452423023391315413 |
20 | 404614540610985119535715 |
[1,1,5,25,195,1781,20043,260317,3881083,64978861, 1209674883,24764370533,553130762451, 13383468009445,348741065652619,9736370899180813, 289948812396124875,9174320178178480829, 307362076657095903411,10869452423023391315413, 404614540610985119535715] |