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) |
|---|---|
| 1 | -3 |
| 2 | -1 |
| 3 | -4 |
| 4 | -1 |
| 5 | -10 |
| 6 | 4 |
| 7 | -16 |
| 8 | -1 |
| 9 | -11 |
| 10 | 2 |
| 11 | -28 |
| 12 | 12 |
| 13 | -34 |
| 14 | 0 |
| 15 | -8 |
| 16 | -1 |
| 17 | -46 |
| 18 | 15 |
| 19 | -52 |
| 20 | 10 |
| 21 | -16 |
| 22 | -4 |
| 23 | -64 |
| 24 | 28 |
| 25 | -49 |
| 26 | -6 |
| 27 | -32 |
| 28 | 8 |
| 29 | -82 |
| 30 | 40 |
| 31 | -88 |
| 32 | -1 |
| 33 | -32 |
| 34 | -10 |
| 35 | -48 |
| 36 | 43 |
| 37 | -106 |
| 38 | -12 |
| 39 | -40 |
| 40 | 26 |
| 41 | -118 |
| 42 | 48 |
| 43 | -124 |
| 44 | 4 |
| 45 | -18 |
| 46 | -16 |
| 47 | -136 |
| 48 | 60 |
| 49 | -111 |
| 50 | 13 |
| 51 | -56 |
| 52 | 2 |
| 53 | -154 |
| 54 | 48 |
| 55 | -88 |
| 56 | 24 |
| 57 | -64 |
| 58 | -22 |
| 59 | -172 |
| 60 | 104 |
| 61 | -178 |
| 62 | -24 |
| 63 | -40 |
| 64 | -1 |
| 65 | -108 |
| 66 | 64 |
| 67 | -196 |
| 68 | -2 |
| 69 | -80 |
| 70 | 48 |
| 71 | -208 |
| 72 | 99 |
| 73 | -214 |