The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 3 |
| 7 | 2 |
| 8 | 0 |
| 9 | -2 |
| 10 | -3 |
| 11 | -2 |
| 12 | 1 |
| 13 | 5 |
| 14 | 8 |
| 15 | 8 |
| 16 | 4 |
| 17 | -3 |
| 18 | -10 |
| 19 | -13 |
| 20 | -9 |
| 21 | 2 |
| 22 | 16 |
| 23 | 26 |
| 24 | 25 |
| 25 | 10 |
| 26 | -15 |
| 27 | -39 |
| 28 | -48 |
| 29 | -32 |
| 30 | 8 |
| 31 | 57 |
| 32 | 90 |
| 33 | 83 |
| 34 | 27 |
| 35 | -62 |
| 36 | -144 |
| 37 | -170 |
| 38 | -107 |
| 39 | 38 |
| 40 | 209 |
| 41 | 317 |
| 42 | 280 |
| 43 | 72 |
| 44 | -244 |
| 45 | -523 |
| 46 | -594 |
| 47 | -349 |
| 48 | 175 |
| 49 | 770 |
| 50 | 1120 |
| 51 | 946 |
| 52 | 177 |
| 53 | -942 |
| 54 | -1887 |
| 55 | -2063 |
| 56 | -1120 |
| 57 | 768 |
[0,0,1,2,3,3,2,0,-2,-3,-2,1,5,8,8,4,-3,-10,-13,-9, 2,16,26,25,10,-15,-39,-48,-32,8,57,90,83,27,-62, -144,-170,-107,38,209,317,280,72,-244,-523,-594, -349,175,770,1120,946,177,-942,-1887,-2063,-1120, 768] |