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 | 541 |
| 2 | 709 |
| 3 | 2389 |
| 4 | 3121 |
| 5 | 3529 |
| 6 | 4561 |
| 7 | 4861 |
| 8 | 5869 |
| 9 | 7069 |
| 10 | 8821 |
| 11 | 9001 |
| 12 | 10789 |
| 13 | 12421 |
| 14 | 12781 |
| 15 | 13309 |
| 16 | 14341 |
| 17 | 14869 |
| 18 | 16981 |
| 19 | 18289 |
| 20 | 19249 |
| 21 | 19309 |
| 22 | 19429 |
| 23 | 19501 |
| 24 | 20389 |
| 25 | 20809 |
| 26 | 20929 |
| 27 | 21649 |
| 28 | 22741 |
| 29 | 23629 |
| 30 | 24181 |
| 31 | 25189 |
| 32 | 26821 |
| 33 | 27109 |
| 34 | 27409 |
| 35 | 28669 |
| 36 | 30181 |
| 37 | 30469 |
| 38 | 30781 |
| 39 | 30949 |
| 40 | 31189 |