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 | 1 |
| 2 | 2 |
| 3 | 21 |
| 4 | -5 |
| 5 | -5 |
| 6 | -21 |
| 7 | 11 |
| 8 | 8 |
| 9 | 22 |
| 10 | -18 |
| 11 | -11 |
| 12 | -22 |
| 13 | 31 |
| 14 | 14 |
| 15 | 23 |
| 16 | -56 |
| 17 | -18 |
| 18 | -24 |
| 19 | 127 |
| 20 | 22 |
| 21 | 25 |
| 22 | -2486 |
| 23 | -27 |
| 24 | -27 |
| 25 | -189 |
| 26 | 34 |
| 27 | 28 |
| 28 | 103 |
| 29 | -44 |
| 30 | -30 |
| 31 | -77 |
| 32 | 58 |
| 33 | 33 |
| 34 | 64 |
| 35 | -82 |
| 36 | -36 |
| 37 | -57 |
| 38 | 128 |
| 39 | 40 |
| 40 | 54 |
| 41 | -258 |
| 42 | -46 |
| 43 | -52 |
| 44 | 2486 |
| 45 | 53 |
| 46 | 51 |
| 47 | 380 |
| 48 | -62 |
| 49 | -51 |
| 50 | -191 |
| 51 | 76 |
| 52 | 53 |
| 53 | 134 |
| 54 | -97 |