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 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 18 |
| 5 | 31 |
| 6 | 33 |
| 7 | 39 |
| 8 | 56 |
| 9 | 58 |
| 10 | 94 |
| 11 | 96 |
| 12 | 103 |
| 13 | 156 |
| 14 | 239 |
| 15 | 245 |
| 16 | 253 |
| 17 | 255 |
| 18 | 257 |
| 19 | 275 |
| 20 | 277 |
| 21 | 420 |
| 22 | 610 |
| 23 | 788 |
| 24 | 790 |
| 25 | 792 |
| 26 | 1070 |
| 27 | 1665 |
| 28 | 1667 |
| 29 | 1669 |