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 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 15 |
| 6 | 45 |
| 7 | 91 |
| 8 | 187 |
| 9 | 703 |
| 10 | 1891 |
| 11 | 2701 |
| 12 | 3337 |
| 13 | 12403 |
| 14 | 18721 |
| 15 | 38503 |
| 16 | 49141 |
| 17 | 79003 |
| 18 | 88831 |
| 19 | 104653 |
| 20 | 146611 |
| 21 | 188191 |
| 22 | 218791 |
| 23 | 226801 |
| 24 | 269011 |
| 25 | 286903 |
| 26 | 385003 |
| 27 | 497503 |
| 28 | 597871 |
| 29 | 665281 |
| 30 | 721801 |
| 31 | 736291 |
| 32 | 765703 |
| 33 | 873181 |
| 34 | 954271 |
| 35 | 1056331 |
| 36 | 1314631 |
| 37 | 1373653 |
| 38 | 1537381 |
| 39 | 1755001 |