This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | -2 |
| 4 | -2 |
| 5 | -2 |
| 6 | 0 |
| 7 | 2 |
| 8 | 2 |
| 9 | 4 |
| 10 | -2 |
| 11 | 2 |
| 12 | 0 |
| 13 | 4 |
| 14 | -2 |
| 15 | 4 |
| 16 | 6 |
| 17 | 4 |
| 18 | 4 |
| 19 | -2 |
| 20 | -10 |
| 21 | -12 |
| 22 | -12 |
| 23 | -16 |
| 24 | -14 |
| 25 | 6 |
| 26 | 6 |
| 27 | -4 |
| 28 | 16 |
| 29 | 22 |
| 30 | 30 |
| 31 | 12 |
| 32 | 18 |
| 33 | -60 |
| 34 | -18 |
| 35 | -34 |
| 36 | -64 |
| 37 | -56 |
| 38 | -36 |
| 39 | -46 |
| 40 | 16 |
| 41 | 46 |
| 42 | 64 |
| 43 | 70 |
| 44 | 110 |
| 45 | 192 |
| 46 | 152 |
| 47 | 124 |
| 48 | 58 |
| 49 | 78 |
| 50 | -26 |
| 51 | -54 |
| 52 | -366 |
| 53 | -278 |
| 54 | -182 |
| 55 | -282 |
| 56 | -190 |
| 57 | 40 |
| 58 | -112 |
| 59 | 234 |
| 60 | 300 |
| 61 | 476 |
| 62 | 488 |
| 63 | 906 |
| 64 | 732 |
| 65 | 616 |
| 66 | 706 |
| 67 | 154 |
| 68 | 228 |
| 69 | -180 |
| 70 | -864 |
| 71 | -1112 |
| 72 | -1744 |
| 73 | -2294 |
| 74 | -2824 |
| 75 | -3154 |
| 76 | -2170 |
| 77 | -2146 |
| 78 | -2524 |
| 79 | -1102 |
| 80 | -476 |
| 81 | -126 |
| 82 | 1986 |
| 83 | 4338 |
| 84 | 3344 |
| 85 | 3608 |
| 86 | 6316 |
| 87 | 5136 |
| 88 | 6638 |
| 89 | 6726 |
| 90 | 5254 |
| 91 | 3982 |
| 92 | 2916 |
| 93 | -1466 |
| 94 | -86 |
| 95 | -6710 |
| 96 | -6502 |
| 97 | -9900 |
| 98 | -9128 |
| 99 | -14170 |
| 100 | -12232 |
| 101 | -13940 |
| 102 | -9192 |
| 103 | -6892 |
| 104 | -6270 |
| 105 | 3762 |
| 106 | 7058 |
| 107 | 9468 |
| 108 | 23860 |
| 109 | 22556 |
| 110 | 29812 |
| 111 | 40150 |
| 112 | 34952 |
| 113 | 30350 |