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 | 2699 |
| 2 | 4679 |
| 3 | 10259 |
| 4 | 14489 |
| 5 | 18719 |
| 6 | 19949 |
| 7 | 31607 |
| 8 | 42797 |
| 9 | 49139 |
| 10 | 85487 |
| 11 | 90749 |
| 12 | 104651 |
| 13 | 129887 |
| 14 | 226799 |
| 15 | 294269 |
| 16 | 396269 |
| 17 | 422657 |
| 18 | 458987 |
| 19 | 481571 |
| 20 | 665279 |
| 21 | 710531 |
| 22 | 729059 |
| 23 | 1082399 |
| 24 | 1251947 |
| 25 | 1302449 |
| 26 | 1994687 |
| 27 | 2035151 |
| 28 | 2510567 |
| 29 | 2811269 |
| 30 | 3090089 |