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 | 781 |
| 2 | 1541 |
| 3 | 5461 |
| 4 | 5611 |
| 5 | 7813 |
| 6 | 13021 |
| 7 | 14981 |
| 8 | 15751 |
| 9 | 24211 |
| 10 | 25351 |
| 11 | 29539 |
| 12 | 38081 |
| 13 | 40501 |
| 14 | 44801 |
| 15 | 53971 |
| 16 | 79381 |
| 17 | 100651 |
| 18 | 102311 |
| 19 | 104721 |
| 20 | 112141 |
| 21 | 121463 |
| 22 | 133141 |
| 23 | 141361 |
| 24 | 146611 |
| 25 | 195313 |
| 26 | 211951 |
| 27 | 216457 |
| 28 | 222301 |
| 29 | 251521 |
| 30 | 289081 |
| 31 | 290629 |
| 32 | 298271 |
| 33 | 315121 |