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) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 11 |
| 4 | 31 |
| 5 | 35 |
| 6 | 103 |
| 7 | 235 |
| 8 | 383 |
| 9 | 899 |
| 10 | 1415 |
| 11 | 3979 |
| 12 | 4511 |
| 13 | 13219 |
| 14 | 30183 |
| 15 | 48747 |
| 16 | 116479 |
| 17 | 184067 |
| 18 | 512775 |
| 19 | 587531 |
| 20 | 1653535 |
| 21 | 3890979 |
| 22 | 6284135 |
| 23 | 14706667 |
| 24 | 23128191 |
| 25 | 65108099 |
| 26 | 73636231 |
| 27 | 216382347 |
| 28 | 493870495 |
| 29 | 804319139 |
| 30 | 1882288615 |
| 31 | 2960372331 |
| 32 | 8333424383 |
| 33 | 9428680451 |