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 | 143 |
| 2 | 157 |
| 3 | 203 |
| 4 | 247 |
| 5 | 273 |
| 6 | 1147 |
| 7 | 1209 |
| 8 | 1679 |
| 9 | 2147 |
| 10 | 2279 |
| 11 | 2375 |
| 12 | 2445 |
| 13 | 2705 |
| 14 | 2747 |
| 15 | 4331 |
| 16 | 4687 |
| 17 | 5049 |
| 18 | 6107 |
| 19 | 7367 |
| 20 | 7835 |
| 21 | 7869 |
| 22 | 7979 |
| 23 | 7991 |
| 24 | 9167 |
| 25 | 12127 |
| 26 | 17145 |
| 27 | 18501 |
| 28 | 18753 |
| 29 | 18981 |
| 30 | 19803 |
| 31 | 22987 |
| 32 | 26733 |
| 33 | 27359 |
| 34 | 29097 |
| 35 | 29987 |
| 36 | 32829 |
| 37 | 35485 |
| 38 | 35763 |
| 39 | 37653 |
| 40 | 37851 |
| 41 | 39907 |