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 | 23 |
| 2 | 37 |
| 3 | 53 |
| 4 | 73 |
| 5 | 223 |
| 6 | 227 |
| 7 | 233 |
| 8 | 257 |
| 9 | 277 |
| 10 | 337 |
| 11 | 353 |
| 12 | 373 |
| 13 | 523 |
| 14 | 557 |
| 15 | 577 |
| 16 | 727 |
| 17 | 733 |
| 18 | 757 |
| 19 | 773 |
| 20 | 22273 |
| 21 | 22277 |
| 22 | 22573 |
| 23 | 22727 |
| 24 | 22777 |
| 25 | 23227 |
| 26 | 23327 |
| 27 | 23333 |
| 28 | 23357 |
| 29 | 23537 |
| 30 | 23557 |
| 31 | 23753 |
| 32 | 23773 |
| 33 | 25237 |
| 34 | 25253 |
| 35 | 25357 |
| 36 | 25373 |
| 37 | 25523 |
| 38 | 25537 |
| 39 | 25577 |
| 40 | 25733 |
| 41 | 27253 |
| 42 | 27277 |