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 | 5 |
| 2 | 9 |
| 3 | 17 |
| 4 | 18 |
| 5 | 20 |
| 6 | 25 |
| 7 | 28 |
| 8 | 29 |
| 9 | 35 |
| 10 | 41 |
| 11 | 48 |
| 12 | 50 |
| 13 | 51 |
| 14 | 58 |
| 15 | 67 |
| 16 | 74 |
| 17 | 90 |
| 18 | 94 |
| 19 | 107 |
| 20 | 108 |
| 21 | 135 |
| 22 | 137 |
| 23 | 159 |
| 24 | 165 |
| 25 | 186 |
| 26 | 254 |
| 27 | 290 |