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 | 11 |
| 2 | 359 |
| 3 | 719 |
| 4 | 214559 |
| 5 | 215399 |
| 6 | 245639 |
| 7 | 253679 |
| 8 | 266999 |
| 9 | 507359 |
| 10 | 508559 |
| 11 | 574439 |
| 12 | 670919 |
| 13 | 744599 |
| 14 | 825479 |
| 15 | 1017119 |
| 16 | 1072199 |
| 17 | 1184399 |
| 18 | 1363679 |
| 19 | 1621079 |
| 20 | 1688279 |
| 21 | 1786439 |
| 22 | 2156039 |
| 23 | 2377799 |
| 24 | 2429279 |
| 25 | 2633399 |
| 26 | 2684999 |
| 27 | 2900039 |
| 28 | 3103799 |