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 | 150151 |
| 2 | 330331 |
| 3 | 390391 |
| 4 | 870871 |
| 5 | 930931 |
| 6 | 1231231 |
| 7 | 1411411 |
| 8 | 1831831 |
| 9 | 2012011 |
| 10 | 2372371 |
| 11 | 2672671 |
| 12 | 3813811 |
| 13 | 4174171 |
| 14 | 4474471 |
| 15 | 5375371 |
| 16 | 5435431 |
| 17 | 5735731 |
| 18 | 5915911 |
| 19 | 8078071 |
| 20 | 9219211 |
| 21 | 10120111 |
| 22 | 10420411 |
| 23 | 11021011 |
| 24 | 11501491 |
| 25 | 12642631 |
| 26 | 14024011 |
| 27 | 14624611 |
| 28 | 16246231 |
| 29 | 16426411 |