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 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 1 |
| 9 | 4 |
| 10 | 4 |
| 11 | 4 |
| 12 | 5 |
| 13 | 6 |
| 14 | 7 |
| 15 | 10 |
| 16 | 9 |
| 17 | 12 |
| 18 | 12 |
| 19 | 16 |
| 20 | 17 |
| 21 | 22 |
| 22 | 22 |
| 23 | 26 |
| 24 | 31 |
| 25 | 35 |
| 26 | 37 |
| 27 | 46 |
| 28 | 50 |
| 29 | 55 |
| 30 | 66 |
| 31 | 70 |
| 32 | 82 |
| 33 | 90 |
| 34 | 101 |
| 35 | 114 |
| 36 | 127 |
| 37 | 143 |
| 38 | 159 |
| 39 | 172 |
| 40 | 202 |
| 41 | 215 |
| 42 | 246 |
| 43 | 267 |
| 44 | 301 |
| 45 | 327 |
| 46 | 366 |
| 47 | 402 |
| 48 | 447 |
| 49 | 491 |
| 50 | 545 |
| 51 | 600 |
| 52 | 655 |
| 53 | 722 |
| 54 | 795 |
| 55 | 875 |
| 56 | 964 |
| 57 | 1050 |
| 58 | 1152 |
| 59 | 1259 |
| 60 | 1383 |
[1,0,1,1,1,1,2,3,1,4,4,4,5,6,7,10,9,12,12,16,17, 22,22,26,31,35,37,46,50,55,66,70,82,90,101,114, 127,143,159,172,202,215,246,267,301,327,366,402, 447,491,545,600,655,722,795,875,964,1050,1152, 1259,1383] |