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 | 142857 |
| 2 | 285714 |
| 3 | 428571 |
| 4 | 571428 |
| 5 | 714285 |
| 6 | 857142 |
| 7 | 999999 |
| 8 | 1142856 |
| 9 | 1285713 |
| 10 | 1428570 |
| 11 | 1571427 |
| 12 | 1714284 |
| 13 | 1857141 |
| 14 | 1999998 |
| 15 | 2142855 |
| 16 | 2285712 |
| 17 | 2428569 |
| 18 | 2571426 |
| 19 | 2714283 |
| 20 | 2857140 |
| 21 | 2999997 |
| 22 | 3142854 |
| 23 | 3285711 |
| 24 | 3428568 |
| 25 | 3571425 |
| 26 | 3714282 |
| 27 | 3857139 |
| 28 | 3999996 |
| 29 | 4142853 |
| 30 | 4285710 |