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 | 23401589677 |
| 2 | 23401675789 |
| 3 | 23401675897 |
| 4 | 23401756789 |
| 5 | 23401767589 |
| 6 | 23401896757 |
| 7 | 23415780961 |
| 8 | 23415809761 |
| 9 | 23415896017 |
| 10 | 23415897601 |
| 11 | 23416017589 |
| 12 | 23416075789 |
| 13 | 23417809561 |
| 14 | 23418095761 |
| 15 | 23475601789 |
| 16 | 23475809761 |
| 17 | 23476018957 |
| 18 | 23540176789 |
| 19 | 23540178967 |
| 20 | 23541601789 |