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 | 2 |
| 2 | 13 |
| 3 | 1223 |
| 4 | 2357 |
| 5 | 4013 |
| 6 | 4027 |
| 7 | 4507 |
| 8 | 5903 |
| 9 | 8713 |
| 10 | 9623 |
| 11 | 10663 |
| 12 | 11717 |
| 13 | 12757 |
| 14 | 12983 |
| 15 | 13883 |
| 16 | 15877 |
| 17 | 16103 |
| 18 | 16787 |
| 19 | 16823 |
| 20 | 16883 |
| 21 | 18097 |
| 22 | 22697 |
| 23 | 23357 |
| 24 | 24677 |
| 25 | 26107 |
| 26 | 27953 |
| 27 | 28603 |
| 28 | 30313 |
| 29 | 31327 |
| 30 | 34147 |
| 31 | 35617 |
| 32 | 35933 |
| 33 | 41183 |
| 34 | 44893 |
| 35 | 46687 |
| 36 | 46817 |
| 37 | 48247 |
| 38 | 50417 |
| 39 | 52963 |
| 40 | 54083 |