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 | 2 |
| 1 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 11 |
| 5 | 19 |
| 6 | 23 |
| 7 | 35 |
| 8 | 53 |
| 9 | 73 |
| 10 | 57 |
| 11 | -39 |
| 12 | 87 |
| 13 | -13 |
| 14 | 231 |
| 15 | -29 |
| 16 | 177 |
| 17 | 103 |
| 18 | 299 |
| 19 | -11 |
| 20 | -139 |
| 21 | 85 |
| 22 | -81 |
| 23 | 157 |
| 24 | -169 |
| 25 | 201 |
| 26 | 277 |
| 27 | 371 |
| 28 | 183 |
| 29 | 639 |
| 30 | -251 |
| 31 | 663 |
| 32 | 403 |
| 33 | 263 |
| 34 | 1 |
| 35 | 195 |
| 36 | 157 |
| 37 | 235 |
| 38 | 241 |
| 39 | -129 |
| 40 | 929 |
| 41 | -345 |
| 42 | 839 |
| 43 | -125 |
| 44 | -1887 |
| 45 | -151 |
| 46 | -631 |
| 47 | 653 |
| 48 | 87 |
| 49 | -431 |
| 50 | -223 |
| 51 | -35 |
| 52 | 263 |
| 53 | 821 |
| 54 | -613 |
| 55 | 1793 |
| 56 | 479 |
| 57 | -1653 |
| 58 | 865 |
| 59 | -59 |
| 60 | 919 |
| 61 | -527 |
| 62 | 205 |
| 63 | 471 |
| 64 | 2029 |
| 65 | 2289 |
| 66 | -227 |
| 67 | 1907 |
| 68 | 1011 |
| 69 | 1055 |
| 70 | -1511 |
| 71 | 321 |