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 | 0 |
| 2 | 15 |
| 3 | 21 |
| 4 | 21141 |
| 5 | 21156 |
| 6 | 21162 |
| 7 | 40095 |
| 8 | 40110 |
| 9 | 40116 |
| 10 | 72171 |
| 11 | 72186 |
| 12 | 72192 |
| 13 | 93312 |
| 14 | 93327 |
| 15 | 93333 |
| 16 | 112266 |
| 17 | 112281 |
| 18 | 112287 |
| 19 | 124659 |
| 20 | 124674 |
| 21 | 124680 |
| 22 | 145800 |
| 23 | 145815 |
| 24 | 145821 |
| 25 | 164754 |
| 26 | 164769 |
| 27 | 164775 |
| 28 | 181521 |
| 29 | 181536 |
| 30 | 181542 |
| 31 | 202662 |
| 32 | 202677 |
| 33 | 202683 |
| 34 | 221616 |
| 35 | 221631 |