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 | 17 |
| 2 | 173 |
| 3 | 179 |
| 4 | 317 |
| 5 | 617 |
| 6 | 1117 |
| 7 | 1171 |
| 8 | 1217 |
| 9 | 1709 |
| 10 | 1721 |
| 11 | 1723 |
| 12 | 1733 |
| 13 | 1741 |
| 14 | 1747 |
| 15 | 1753 |
| 16 | 1759 |
| 17 | 1777 |
| 18 | 1783 |
| 19 | 1787 |
| 20 | 1789 |
| 21 | 2017 |
| 22 | 2179 |
| 23 | 2417 |
| 24 | 2617 |
| 25 | 2917 |
| 26 | 3217 |
| 27 | 3517 |
| 28 | 3617 |
| 29 | 3917 |
| 30 | 4177 |
| 31 | 4217 |
| 32 | 4517 |
| 33 | 4817 |
| 34 | 5171 |
| 35 | 5179 |
| 36 | 5417 |
| 37 | 5717 |
| 38 | 6173 |
| 39 | 6217 |
| 40 | 6317 |
| 41 | 6917 |
| 42 | 7177 |
| 43 | 7417 |