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 | 19 |
| 2 | 109 |
| 3 | 199 |
| 4 | 379 |
| 5 | 739 |
| 6 | 829 |
| 7 | 919 |
| 8 | 1009 |
| 9 | 1279 |
| 10 | 1459 |
| 11 | 1549 |
| 12 | 1999 |
| 13 | 2089 |
| 14 | 2179 |
| 15 | 2269 |
| 16 | 2539 |
| 17 | 2719 |
| 18 | 3079 |
| 19 | 3169 |
| 20 | 3259 |
| 21 | 3529 |
| 22 | 3709 |
| 23 | 3889 |
| 24 | 4159 |
| 25 | 4339 |
| 26 | 4519 |
| 27 | 4789 |
| 28 | 4969 |
| 29 | 5059 |
| 30 | 5419 |
| 31 | 5689 |
| 32 | 5779 |
| 33 | 5869 |
| 34 | 6229 |
| 35 | 6679 |
| 36 | 6949 |
| 37 | 7039 |
| 38 | 7129 |
| 39 | 7219 |
| 40 | 7309 |
| 41 | 7489 |
| 42 | 7669 |
| 43 | 7759 |
| 44 | 8209 |