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 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 3 |
| 9 | 4 |
| 10 | 6 |
| 11 | 7 |
| 12 | 7 |
| 13 | 10 |
| 14 | 12 |
| 15 | 14 |
| 16 | 18 |
| 17 | 21 |
| 18 | 25 |
| 19 | 31 |
| 20 | 35 |
| 21 | 42 |
| 22 | 51 |
| 23 | 59 |
| 24 | 68 |
| 25 | 81 |
| 26 | 95 |
| 27 | 108 |
| 28 | 127 |
| 29 | 146 |
| 30 | 168 |
| 31 | 196 |
| 32 | 223 |
| 33 | 255 |
| 34 | 296 |
| 35 | 336 |
| 36 | 382 |
| 37 | 438 |
[-1,1,1,0,1,1,2,3,3,4,6,7,7,10,12,14,18,21,25,31, 35,42,51,59,68,81,95,108,127,146,168,196,223,255, 296,336,382,438] |