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| n | a(n) |
|---|---|
| 0 | -1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 9 |
| 5 | 9 |
| 6 | 4 |
| 7 | -4 |
| 8 | 5 |
| 9 | 5 |
| 10 | 18 |
| 11 | 18 |
| 12 | 7 |
| 13 | -7 |
| 14 | 8 |
| 15 | 8 |
| 16 | 27 |
| 17 | 27 |
| 18 | 10 |
| 19 | -10 |
| 20 | 11 |
| 21 | 11 |
| 22 | 36 |
| 23 | 36 |
| 24 | 13 |
| 25 | -13 |
| 26 | 14 |
| 27 | 14 |
| 28 | 45 |
| 29 | 45 |
| 30 | 16 |
| 31 | -16 |
| 32 | 17 |
| 33 | 17 |
| 34 | 54 |
| 35 | 54 |
| 36 | 19 |
| 37 | -19 |
| 38 | 20 |
| 39 | 20 |
| 40 | 63 |
| 41 | 63 |
| 42 | 22 |
| 43 | -22 |
| 44 | 23 |
| 45 | 23 |
| 46 | 72 |
| 47 | 72 |
| 48 | 25 |
| 49 | -25 |
| 50 | 26 |
| 51 | 26 |
| 52 | 81 |
| 53 | 81 |
| 54 | 28 |
| 55 | -28 |
| 56 | 29 |
| 57 | 29 |
| 58 | 90 |
| 59 | 90 |
| 60 | 31 |
| 61 | -31 |
| 62 | 32 |
| 63 | 32 |
| 64 | 99 |
| 65 | 99 |
| 66 | 34 |
| 67 | -34 |
| 68 | 35 |
| 69 | 35 |
| 70 | 108 |
| 71 | 108 |
| 72 | 37 |
| 73 | -37 |
| 74 | 38 |
| 75 | 38 |
| 76 | 117 |
| 77 | 117 |
| 78 | 40 |
| 79 | -40 |
| 80 | 41 |
| 81 | 41 |
| 82 | 126 |
[-1,1,2,2,9,9,4,-4,5,5,18,18,7,-7,8,8,27,27,10, -10,11,11,36,36,13,-13,14,14,45,45,16,-16,17,17, 54,54,19,-19,20,20,63,63,22,-22,23,23,72,72,25, -25,26,26,81,81,28,-28,29,29,90,90,31,-31,32,32, 99,99,34,-34,35,35,108,108,37,-37,38,38,117,117, 40,-40,41,41,126] |