The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 19 |
| 3 | 60 |
| 4 | 379 |
| 5 | 1197 |
| 6 | 7561 |
| 7 | 23880 |
| 8 | 150841 |
| 9 | 476403 |
| 10 | 3009259 |
| 11 | 9504180 |
| 12 | 60034339 |
| 13 | 189607197 |
| 14 | 1197677521 |
| 15 | 3782639760 |
| 16 | 23893516081 |
| 17 | 75463188003 |
| 18 | 476672644099 |
| 19 | 1505481120300 |
| 20 | 9509559365899 |
| 21 | 30034159217997 |
[1,3,19,60,379,1197,7561,23880,150841,476403, 3009259,9504180,60034339,189607197,1197677521, 3782639760,23893516081,75463188003,476672644099, 1505481120300,9509559365899,30034159217997] |