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 | 12 |
| 2 | 23 |
| 3 | 35 |
| 4 | 45 |
| 5 | 57 |
| 6 | 67 |
| 7 | 711 |
| 8 | 811 |
| 9 | 911 |
| 10 | 1011 |
| 11 | 1113 |
| 12 | 1213 |
| 13 | 1317 |
| 14 | 1417 |
| 15 | 1517 |
| 16 | 1617 |
| 17 | 1719 |
| 18 | 1819 |
| 19 | 1923 |
| 20 | 2023 |
| 21 | 2123 |
| 22 | 2223 |
| 23 | 2329 |
| 24 | 2429 |
| 25 | 2529 |
| 26 | 2629 |
| 27 | 2729 |
| 28 | 2829 |
| 29 | 2931 |
| 30 | 3031 |
| 31 | 3137 |
| 32 | 3237 |
| 33 | 3337 |
| 34 | 3437 |
| 35 | 3537 |
| 36 | 3637 |
| 37 | 3741 |
| 38 | 3841 |
| 39 | 3941 |
| 40 | 4041 |
| 41 | 4143 |
| 42 | 4243 |