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 | 3 |
| 2 | 1949 |
| 3 | 4217 |
| 4 | 8219 |
| 5 | 9929 |
| 6 | 22091 |
| 7 | 23537 |
| 8 | 28097 |
| 9 | 38711 |
| 10 | 41609 |
| 11 | 50051 |
| 12 | 60899 |
| 13 | 68111 |
| 14 | 72227 |
| 15 | 74159 |
| 16 | 79631 |
| 17 | 115151 |
| 18 | 122399 |
| 19 | 127679 |
| 20 | 150959 |
| 21 | 155537 |
| 22 | 266687 |
| 23 | 267611 |
| 24 | 270551 |
| 25 | 271499 |
| 26 | 284741 |
| 27 | 306347 |
| 28 | 428297 |
| 29 | 433661 |
| 30 | 444287 |