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 | 2 |
| 1 | 12 |
| 2 | 22 |
| 3 | 122 |
| 4 | 132 |
| 5 | 242 |
| 6 | 1332 |
| 7 | 1342 |
| 8 | 1452 |
| 9 | 2662 |
| 10 | 14642 |
| 11 | 14652 |
| 12 | 14762 |
| 13 | 15972 |
| 14 | 29282 |
| 15 | 161052 |
| 16 | 161062 |
| 17 | 161172 |
| 18 | 162382 |
| 19 | 175692 |
| 20 | 322102 |
| 21 | 1771562 |
| 22 | 1771572 |
| 23 | 1771682 |
| 24 | 1772892 |
| 25 | 1786202 |
| 26 | 1932612 |
| 27 | 3543122 |
| 28 | 19487172 |
| 29 | 19487182 |
| 30 | 19487292 |
| 31 | 19488502 |
| 32 | 19501812 |
| 33 | 19648222 |
| 34 | 21258732 |
| 35 | 38974342 |