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 | 313 |
| 2 | 523 |
| 3 | 733 |
| 4 | 823 |
| 5 | 824 |
| 6 | 943 |
| 7 | 944 |
| 8 | 973 |
| 9 | 1153 |
| 10 | 1363 |
| 11 | 1573 |
| 12 | 1753 |
| 13 | 1783 |
| 14 | 1813 |
| 15 | 1993 |
| 16 | 2143 |
| 17 | 2413 |
| 18 | 2473 |
| 19 | 2623 |
| 20 | 2803 |
| 21 | 3043 |
| 22 | 3133 |
| 23 | 3134 |
| 24 | 3253 |
| 25 | 3313 |
| 26 | 3463 |
| 27 | 3703 |
| 28 | 3883 |
| 29 | 4093 |
| 30 | 4123 |
| 31 | 4303 |
| 32 | 4387 |
| 33 | 4388 |
| 34 | 4513 |
| 35 | 4723 |
| 36 | 4873 |
| 37 | 4874 |
| 38 | 4933 |
| 39 | 5113 |
| 40 | 5143 |
| 41 | 5353 |
| 42 | 5443 |
| 43 | 5444 |
| 44 | 5563 |
| 45 | 5564 |