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 | 199 |
| 2 | 409 |
| 3 | 619 |
| 4 | 881 |
| 5 | 3499 |
| 6 | 3709 |
| 7 | 10627 |
| 8 | 10859 |
| 9 | 11069 |
| 10 | 30097 |
| 11 | 31583 |
| 12 | 120661 |
| 13 | 120737 |
| 14 | 153319 |
| 15 | 182537 |
| 16 | 471089 |
| 17 | 487391 |
| 18 | 564973 |
| 19 | 565183 |
| 20 | 825991 |
| 21 | 1010747 |
| 22 | 1280623 |
| 23 | 1288607 |
| 24 | 1288817 |
| 25 | 1302281 |
| 26 | 1302491 |
| 27 | 1395209 |
| 28 | 1982599 |
| 29 | 2358841 |
| 30 | 2359051 |
| 31 | 2439571 |
| 32 | 3161017 |
| 33 | 3600521 |