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 | 53 |
| 2 | 353 |
| 3 | 653 |
| 4 | 853 |
| 5 | 953 |
| 6 | 1153 |
| 7 | 1453 |
| 8 | 1553 |
| 9 | 1753 |
| 10 | 2053 |
| 11 | 2153 |
| 12 | 2753 |
| 13 | 2953 |
| 14 | 3253 |
| 15 | 3853 |
| 16 | 4153 |
| 17 | 4253 |
| 18 | 5153 |
| 19 | 5653 |
| 20 | 5953 |
| 21 | 6053 |
| 22 | 6353 |
| 23 | 6553 |
| 24 | 6653 |
| 25 | 7253 |
| 26 | 7753 |
| 27 | 7853 |
| 28 | 8053 |
| 29 | 8353 |
| 30 | 8753 |
| 31 | 10253 |
| 32 | 10453 |
| 33 | 10753 |
| 34 | 10853 |
| 35 | 11353 |
| 36 | 11953 |
| 37 | 12253 |
| 38 | 12553 |
| 39 | 12653 |
| 40 | 12853 |
| 41 | 12953 |
| 42 | 13553 |