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) |
|---|---|
| 3 | 1 |
| 4 | 4 |
| 5 | 11 |
| 6 | 24 |
| 7 | 25 |
| 8 | 47 |
| 9 | 48 |
| 10 | 49 |
| 11 | 50 |
| 12 | 80 |
| 13 | 82 |
| 14 | 83 |
| 15 | 84 |
| 16 | 85 |
| 17 | 86 |
| 18 | 87 |
| 19 | 88 |
| 20 | 89 |
| 21 | 90 |
| 22 | 91 |
| 23 | 137 |