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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 7 |
| 7 | 12 |
| 8 | 15 |
| 9 | 20 |
| 10 | 30 |
| 11 | 31 |
| 12 | 60 |
| 13 | 61 |
| 14 | 84 |
| 15 | 105 |
| 16 | 140 |
| 17 | 210 |
| 18 | 211 |
| 19 | 420 |
| 20 | 421 |
| 21 | 422 |
| 22 | 423 |
| 23 | 840 |
| 24 | 841 |
| 25 | 1260 |
| 26 | 1261 |
| 27 | 1540 |
| 28 | 2310 |
| 29 | 2520 |
| 30 | 4620 |
| 31 | 4621 |
| 32 | 5460 |
| 33 | 5461 |
| 34 | 9240 |