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 | 241 |
| 2 | 601 |
| 3 | 1201 |
| 4 | 1321 |
| 5 | 1801 |
| 6 | 2161 |
| 7 | 2281 |
| 8 | 2521 |
| 9 | 3001 |
| 10 | 3121 |
| 11 | 3361 |
| 12 | 4201 |
| 13 | 4441 |
| 14 | 4561 |
| 15 | 4801 |
| 16 | 5281 |
| 17 | 5521 |
| 18 | 5641 |
| 19 | 5881 |
| 20 | 6121 |
| 21 | 6361 |
| 22 | 6481 |
| 23 | 6841 |
| 24 | 6961 |
| 25 | 7321 |
| 26 | 7561 |
| 27 | 7681 |
| 28 | 8161 |
| 29 | 8521 |
| 30 | 8641 |
| 31 | 8761 |
| 32 | 9001 |
| 33 | 9241 |
| 34 | 9601 |
| 35 | 9721 |
| 36 | 10321 |
| 37 | 11161 |
| 38 | 12241 |
| 39 | 12601 |
| 40 | 12721 |
| 41 | 12841 |