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) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 3 |
| 5 | 2 |
| 6 | 1 |
| 7 | 0 |
| 8 | 4 |
| 9 | 4 |
| 10 | 3 |
| 11 | 2 |
| 12 | 0 |
| 13 | -1 |
| 14 | -2 |
| 15 | -1 |
| 16 | 7 |
| 17 | 6 |
| 18 | 6 |
| 19 | 5 |
| 20 | 3 |
| 21 | 4 |
| 22 | 3 |
| 23 | 2 |
| 24 | -2 |
| 25 | -2 |
| 26 | -3 |
| 27 | -3 |
| 28 | -5 |
| 29 | -6 |
| 30 | -5 |
| 31 | -6 |
| 32 | 10 |
| 33 | 11 |
| 34 | 10 |
| 35 | 11 |
| 36 | 11 |
| 37 | 10 |
| 38 | 9 |
| 39 | 10 |
| 40 | 6 |
| 41 | 5 |
| 42 | 6 |
| 43 | 5 |
| 44 | 3 |
| 45 | 3 |
| 46 | 2 |
| 47 | 1 |
| 48 | -7 |
| 49 | -7 |
| 50 | -7 |
| 51 | -6 |
| 52 | -8 |
| 53 | -9 |
| 54 | -9 |
| 55 | -8 |
| 56 | -12 |
| 57 | -11 |
| 58 | -12 |
| 59 | -13 |
| 60 | -11 |
| 61 | -12 |
| 62 | -13 |
| 63 | -13 |
| 64 | 19 |
| 65 | 20 |
| 66 | 21 |
| 67 | 20 |
| 68 | 18 |
| 69 | 19 |
| 70 | 20 |
| 71 | 19 |
| 72 | 19 |
| 73 | 18 |
| 74 | 17 |
| 75 | 17 |
[1,2,1,3,2,1,0,4,4,3,2,0,-1,-2,-1,7,6,6,5,3,4,3,2, -2,-2,-3,-3,-5,-6,-5,-6,10,11,10,11,11,10,9,10,6, 5,6,5,3,3,2,1,-7,-7,-7,-6,-8,-9,-9,-8,-12,-11,-12, -13,-11,-12,-13,-13,19,20,21,20,18,19,20,19,19,18, 17,17] |