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 | 1 |
| 2 | 9 |
| 3 | 25 |
| 4 | 169 |
| 5 | 441 |
| 6 | 3025 |
| 7 | 7921 |
| 8 | 54289 |
| 9 | 142129 |
| 10 | 974169 |
| 11 | 2550409 |
| 12 | 17480761 |
| 13 | 45765225 |
| 14 | 313679521 |
| 15 | 821223649 |
| 16 | 5628750625 |
| 17 | 14736260449 |
| 18 | 101003831721 |
| 19 | 264431464441 |
| 20 | 1812440220361 |
| 21 | 4745030099481 |
| 22 | 32522920134769 |
[1,1,9,25,169,441,3025,7921,54289,142129,974169, 2550409,17480761,45765225,313679521,821223649, 5628750625,14736260449,101003831721,264431464441, 1812440220361,4745030099481,32522920134769] |