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 | -2 |
| 2 | -5 |
| 3 | -2 |
| 4 | 3 |
| 5 | 2 |
| 6 | -19 |
| 7 | 19 |
| 8 | -41 |
| 9 | -7 |
| 10 | -41 |
| 11 | 17 |
| 12 | 2 |
| 13 | -109 |
| 14 | -2 |
| 15 | 7 |
| 16 | -47 |
| 17 | -271 |
| 18 | 199 |
| 19 | -127 |
| 20 | 71 |
| 21 | 2 |
| 22 | -37 |
| 23 | 499 |
| 24 | 2 |
| 25 | -71 |
| 26 | 199 |
| 27 | 353 |
| 28 | -811 |
| 29 | 1021 |
| 30 | -929 |
| 31 | 59 |
| 32 | -457 |
| 33 | -449 |
| 34 | -163 |
| 35 | -683 |
| 36 | -157 |
| 37 | 41 |
| 38 | -751 |
| 39 | 251 |
| 40 | 2 |
| 41 | -2161 |
| 42 | -19 |
| 43 | 401 |
| 44 | 467 |
| 45 | -61 |
| 46 | 967 |
| 47 | -631 |
| 48 | -3659 |
| 49 | -2777 |
| 50 | 3391 |
| 51 | -4421 |
| 52 | 269 |
| 53 | -2333 |
| 54 | -1201 |
| 55 | -4969 |
| 56 | 4999 |
| 57 | -1103 |
| 58 | -2647 |
| 59 | -1097 |
| 60 | 269 |