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 | 2521 |
| 2 | 7561 |
| 3 | 12601 |
| 4 | 15121 |
| 5 | 20161 |
| 6 | 30241 |
| 7 | 35281 |
| 8 | 42841 |
| 9 | 45361 |
| 10 | 47881 |
| 11 | 55441 |
| 12 | 65521 |
| 13 | 68041 |
| 14 | 78121 |
| 15 | 93241 |
| 16 | 100801 |
| 17 | 110881 |
| 18 | 126001 |
| 19 | 128521 |
| 20 | 131041 |
| 21 | 141121 |
| 22 | 146161 |
| 23 | 151201 |
| 24 | 156241 |
| 25 | 158761 |
| 26 | 161281 |
| 27 | 176401 |
| 28 | 178921 |
| 29 | 186481 |
| 30 | 196561 |
| 31 | 199081 |
| 32 | 206641 |
| 33 | 211681 |
| 34 | 229321 |