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 | 5 |
| 2 | 199 |
| 3 | 251 |
| 4 | 491 |
| 5 | 709 |
| 6 | 739 |
| 7 | 929 |
| 8 | 1151 |
| 9 | 1201 |
| 10 | 1289 |
| 11 | 1429 |
| 12 | 1451 |
| 13 | 1621 |
| 14 | 2039 |
| 15 | 2129 |
| 16 | 2281 |
| 17 | 2341 |
| 18 | 2551 |
| 19 | 2591 |
| 20 | 2819 |
| 21 | 3019 |
| 22 | 3329 |
| 23 | 3539 |
| 24 | 3581 |
| 25 | 3919 |
| 26 | 4091 |
| 27 | 4519 |
| 28 | 4831 |
| 29 | 4861 |
| 30 | 4889 |
| 31 | 4919 |
| 32 | 5179 |
| 33 | 5381 |
| 34 | 5431 |
| 35 | 5521 |
| 36 | 5749 |
| 37 | 5861 |
| 38 | 6091 |
| 39 | 6659 |
| 40 | 6661 |
| 41 | 7069 |