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 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 0 |
| 8 | -1 |
| 9 | 0 |
| 10 | 2 |
| 11 | 1 |
| 12 | -1 |
| 13 | -1 |
| 14 | 1 |
| 15 | 2 |
| 16 | -1 |
| 17 | -2 |
| 18 | 1 |
| 19 | 3 |
| 20 | 1 |
| 21 | -3 |
| 22 | -1 |
| 23 | 3 |
| 24 | 1 |
| 25 | -3 |
| 26 | -2 |
| 27 | 4 |
| 28 | 4 |
| 29 | -3 |
| 30 | -4 |
| 31 | 3 |
| 32 | 5 |
| 33 | -3 |
| 34 | -7 |
| 35 | 2 |
| 36 | 9 |
| 37 | 0 |
| 38 | -9 |
| 39 | -1 |
| 40 | 10 |
| 41 | 3 |
| 42 | -11 |
| 43 | -5 |
| 44 | 12 |
| 45 | 8 |
| 46 | -11 |
| 47 | -10 |
| 48 | 10 |
| 49 | 12 |
| 50 | -11 |
| 51 | -15 |
| 52 | 11 |
| 53 | 19 |
| 54 | -7 |
| 55 | -21 |
| 56 | 6 |
| 57 | 24 |
| 58 | -5 |
| 59 | -28 |
| 60 | 1 |
| 61 | 31 |
| 62 | 4 |
| 63 | -33 |
| 64 | -8 |
| 65 | 36 |
| 66 | 12 |
| 67 | -38 |
| 68 | -18 |
| 69 | 40 |
| 70 | 27 |
| 71 | -40 |
| 72 | -33 |
| 73 | 40 |
| 74 | 39 |
| 75 | -40 |
| 76 | -49 |
| 77 | 38 |
| 78 | 60 |
| 79 | -34 |
| 80 | -67 |
| 81 | 30 |
| 82 | 75 |
| 83 | -25 |
| 84 | -87 |
| 85 | 18 |
| 86 | 98 |
[1,1,1,0,0,1,1,0,-1,0,2,1,-1,-1,1,2,-1,-2,1,3,1, -3,-1,3,1,-3,-2,4,4,-3,-4,3,5,-3,-7,2,9,0,-9,-1, 10,3,-11,-5,12,8,-11,-10,10,12,-11,-15,11,19,-7, -21,6,24,-5,-28,1,31,4,-33,-8,36,12,-38,-18,40,27, -40,-33,40,39,-40,-49,38,60,-34,-67,30,75,-25,-87, 18,98] |