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 | 37 |
| 2 | 337 |
| 3 | 3257 |
| 4 | 3373 |
| 5 | 3527 |
| 6 | 7577 |
| 7 | 32233 |
| 8 | 32257 |
| 9 | 32353 |
| 10 | 32377 |
| 11 | 32537 |
| 12 | 35227 |
| 13 | 35257 |
| 14 | 35327 |
| 15 | 35537 |
| 16 | 72337 |
| 17 | 72577 |
| 18 | 73277 |
| 19 | 75577 |
| 20 | 322573 |
| 21 | 323333 |
| 22 | 327553 |
| 23 | 332573 |
| 24 | 333227 |
| 25 | 333253 |
| 26 | 333337 |
| 27 | 337537 |
| 28 | 353737 |
| 29 | 353777 |
| 30 | 355573 |
| 31 | 357737 |
| 32 | 372277 |
| 33 | 372377 |
| 34 | 373357 |
| 35 | 373777 |
| 36 | 377737 |
| 37 | 723727 |
| 38 | 725357 |
| 39 | 757577 |