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 | 199211 |
| 2 | 211199 |
| 3 | 233239 |
| 4 | 239233 |
| 5 | 257263 |
| 6 | 263257 |
| 7 | 353359 |
| 8 | 359353 |
| 9 | 523541 |
| 10 | 541523 |
| 11 | 653659 |
| 12 | 659653 |
| 13 | 971977 |
| 14 | 977971 |
| 15 | 19731979 |
| 16 | 19791973 |
| 17 | 23332339 |
| 18 | 23392333 |
| 19 | 32593271 |
| 20 | 32713259 |
| 21 | 36373643 |
| 22 | 36433637 |
| 23 | 37613767 |
| 24 | 37673761 |
| 25 | 42834289 |
| 26 | 42894283 |
| 27 | 49934999 |
| 28 | 49994993 |