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 | 2 |
| 2 | 7 |
| 3 | 32 |
| 4 | 165 |
| 5 | 910 |
| 6 | 5251 |
| 7 | 31314 |
| 8 | 191463 |
| 9 | 1193808 |
| 10 | 7561825 |
| 11 | 48522630 |
| 12 | 314752515 |
| 13 | 2060587112 |
| 14 | 13597183916 |
| 15 | 90342651982 |
| 16 | 603886553067 |
| 17 | 4058197580308 |
| 18 | 27401404029181 |
| 19 | 185806213609730 |
| 20 | 1264774546754103 |
| 21 | 8639226724499070 |
| 22 | 59198404680049915 |
[1,2,7,32,165,910,5251,31314,191463,1193808, 7561825,48522630,314752515,2060587112,13597183916, 90342651982,603886553067,4058197580308, 27401404029181,185806213609730,1264774546754103, 8639226724499070,59198404680049915] |