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 | 251 |
| 2 | 1493 |
| 3 | 1889 |
| 4 | 1901 |
| 5 | 2393 |
| 6 | 2399 |
| 7 | 4373 |
| 8 | 4391 |
| 9 | 4451 |
| 10 | 4673 |
| 11 | 4679 |
| 12 | 5237 |
| 13 | 5351 |
| 14 | 5381 |
| 15 | 6311 |
| 16 | 7079 |
| 17 | 7103 |
| 18 | 7793 |
| 19 | 7817 |
| 20 | 7823 |
| 21 | 7883 |
| 22 | 8111 |
| 23 | 9203 |
| 24 | 9209 |
| 25 | 9467 |
| 26 | 9473 |
| 27 | 9833 |
| 28 | 10181 |
| 29 | 11393 |
| 30 | 11783 |
| 31 | 11789 |
| 32 | 12113 |
| 33 | 12641 |
| 34 | 12647 |
| 35 | 12653 |
| 36 | 12923 |
| 37 | 13103 |
| 38 | 13451 |
| 39 | 14741 |
| 40 | 15749 |