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 | 151 |
| 2 | 241 |
| 3 | 251 |
| 4 | 431 |
| 5 | 571 |
| 6 | 641 |
| 7 | 911 |
| 8 | 971 |
| 9 | 1181 |
| 10 | 1811 |
| 11 | 2011 |
| 12 | 2351 |
| 13 | 2381 |
| 14 | 2411 |
| 15 | 2731 |
| 16 | 3061 |
| 17 | 3121 |
| 18 | 3221 |
| 19 | 3251 |
| 20 | 3301 |
| 21 | 3331 |
| 22 | 3361 |
| 23 | 3391 |
| 24 | 3541 |
| 25 | 3761 |
| 26 | 3821 |
| 27 | 3881 |
| 28 | 4211 |
| 29 | 4751 |
| 30 | 4861 |
| 31 | 4871 |
| 32 | 4931 |
| 33 | 5021 |
| 34 | 5381 |
| 35 | 5441 |
| 36 | 5471 |
| 37 | 5581 |
| 38 | 5641 |
| 39 | 5711 |
| 40 | 5821 |
| 41 | 5861 |