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 | 13 |
| 2 | 43 |
| 3 | 73 |
| 4 | 103 |
| 5 | 163 |
| 6 | 193 |
| 7 | 223 |
| 8 | 283 |
| 9 | 313 |
| 10 | 373 |
| 11 | 433 |
| 12 | 463 |
| 13 | 523 |
| 14 | 613 |
| 15 | 643 |
| 16 | 673 |
| 17 | 733 |
| 18 | 823 |
| 19 | 853 |
| 20 | 883 |
| 21 | 1033 |
| 22 | 1063 |
| 23 | 1093 |
| 24 | 1123 |
| 25 | 1153 |
| 26 | 1213 |
| 27 | 1303 |
| 28 | 1423 |
| 29 | 1453 |
| 30 | 1483 |
| 31 | 1543 |
| 32 | 1663 |
| 33 | 1693 |
| 34 | 1723 |
| 35 | 1753 |
| 36 | 1783 |
| 37 | 1873 |
| 38 | 1933 |
| 39 | 1993 |
| 40 | 2053 |
| 41 | 2083 |
| 42 | 2113 |
| 43 | 2143 |
| 44 | 2203 |
| 45 | 2293 |
| 46 | 2383 |