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 | 9876543211 |
| 2 | 9876542131 |
| 3 | 9876541321 |
| 4 | 9876541231 |
| 5 | 9876534211 |
| 6 | 9876532411 |
| 7 | 9876524131 |
| 8 | 9876521341 |
| 9 | 9876521143 |
| 10 | 9876514321 |
| 11 | 9876511243 |
| 12 | 9876453211 |
| 13 | 9876435211 |
| 14 | 9876432151 |
| 15 | 9876425113 |
| 16 | 9876421153 |
| 17 | 9876325411 |
| 18 | 9876324511 |