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) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 16 |
| 3 | 56 |
| 4 | 93 |
| 5 | 136 |
| 6 | 168 |
| 7 | 321 |
| 8 | 332 |
| 9 | 363 |
| 10 | 409 |
| 11 | 411 |
| 12 | 443 |
| 13 | 467 |
| 14 | 1658 |
| 15 | 1688 |
| 16 | 1699 |
| 17 | 1708 |
| 18 | 1715 |
| 19 | 1720 |
| 20 | 1913 |