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 | 185 |
| 2 | 317 |
| 3 | 561 |
| 4 | 1007 |
| 5 | 1823 |
| 6 | 3455 |
| 7 | 6495 |
| 8 | 12105 |
| 9 | 22459 |
| 10 | 43255 |
| 11 | 82157 |
| 12 | 154279 |
| 13 | 287847 |
| 14 | 556213 |
| 15 | 1059205 |
| 16 | 1992823 |
| 17 | 3723991 |
| 18 | 7202379 |
| 19 | 13726813 |
| 20 | 25838725 |
| 21 | 48308217 |
| 22 | 93456427 |
| 23 | 178172281 |
| 24 | 335410643 |
| 25 | 627185919 |
| 26 | 1213463869 |
| 27 | 2313820457 |
| 28 | 4355601755 |