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 | 4 |
| 2 | 28 |
| 3 | 44 |
| 4 | 188 |
| 5 | 248 |
| 6 | 444 |
| 7 | 1488 |
| 8 | 2288 |
| 9 | 2448 |
| 10 | 4444 |
| 11 | 12888 |
| 12 | 14488 |
| 13 | 22488 |
| 14 | 24448 |
| 15 | 44444 |
| 16 | 118888 |
| 17 | 124888 |
| 18 | 144488 |
| 19 | 222888 |
| 20 | 224488 |
| 21 | 244448 |
| 22 | 444444 |
| 23 | 1148888 |
| 24 | 1228888 |
| 25 | 1244888 |
| 26 | 1444488 |
| 27 | 2224888 |
| 28 | 2244488 |
| 29 | 2444448 |
| 30 | 4444444 |
| 31 | 11288888 |
| 32 | 11448888 |
| 33 | 12248888 |
| 34 | 12444888 |