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 | 12132003 |
| 2 | 23121300 |
| 3 | 30023121 |
| 4 | 31213200 |
| 5 | 1214230043 |
| 6 | 1312432004 |
| 7 | 2342131400 |
| 8 | 2412134003 |
| 9 | 3004312142 |
| 10 | 3400324121 |
| 11 | 4002342131 |
| 12 | 4131243200 |
| 13 | 1213267345006475 |
| 14 | 1213275364005746 |
| 15 | 1214267540036573 |
| 16 | 1214273645300765 |
| 17 | 1214275640035763 |
| 18 | 1215247365430076 |