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 | 83 |
| 2 | 271 |
| 3 | 1553 |
| 4 | 2693 |
| 5 | 5051 |
| 6 | 10651 |
| 7 | 23333 |
| 8 | 34123 |
| 9 | 219389 |
| 10 | 230933 |
| 11 | 312007 |
| 12 | 338017 |
| 13 | 395309 |
| 14 | 512891 |
| 15 | 699437 |
| 16 | 763999 |
| 17 | 815257 |
| 18 | 1078127 |
| 19 | 1208791 |
| 20 | 1417019 |
| 21 | 1577561 |
| 22 | 1629083 |
| 23 | 2420609 |
| 24 | 2787947 |
| 25 | 2868787 |
| 26 | 2944429 |
| 27 | 3038639 |
| 28 | 3222101 |
| 29 | 3868201 |