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 | 5 |
| 2 | 36 |
| 3 | 85 |
| 4 | 279 |
| 5 | 900 |
| 6 | 2837 |
| 7 | 9148 |
| 8 | 29570 |
| 9 | 95102 |
| 10 | 306540 |
| 11 | 989092 |
| 12 | 3188130 |
| 13 | 10278456 |
| 14 | 33146672 |
| 15 | 106872610 |
| 16 | 344585885 |
| 17 | 1111106822 |
| 18 | 3582609009 |
| 19 | 11551580944 |
| 20 | 37246820838 |
| 21 | 120097695423 |
| 22 | 387239261828 |
| 23 | 1248605509417 |
| 24 | 4025972358284 |