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 | 7 |
| 2 | 11 |
| 3 | 17 |
| 4 | 41 |
| 5 | 47 |
| 6 | 71 |
| 7 | 181 |
| 8 | 487 |
| 9 | 787 |
| 10 | 811 |
| 11 | 877 |
| 12 | 881 |
| 13 | 887 |
| 14 | 1117 |
| 15 | 1171 |
| 16 | 1181 |
| 17 | 1187 |
| 18 | 1447 |
| 19 | 1471 |
| 20 | 1481 |
| 21 | 1487 |
| 22 | 1741 |
| 23 | 1747 |
| 24 | 1777 |
| 25 | 1787 |
| 26 | 1811 |
| 27 | 1847 |
| 28 | 1871 |
| 29 | 1877 |
| 30 | 4111 |
| 31 | 4177 |
| 32 | 4441 |
| 33 | 4447 |
| 34 | 4481 |
| 35 | 4787 |
| 36 | 4817 |
| 37 | 4871 |
| 38 | 4877 |
| 39 | 7177 |
| 40 | 7187 |
| 41 | 7411 |
| 42 | 7417 |
| 43 | 7477 |
| 44 | 7481 |
| 45 | 7487 |
| 46 | 7717 |
| 47 | 7741 |