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 | 49 |
| 1 | 143 |
| 2 | 574 |
| 3 | 1319 |
| 4 | 4510 |
| 5 | 9614 |
| 6 | 15763 |
| 7 | 73394 |
| 8 | 107341 |
| 9 | 180752 |
| 10 | 988273 |
| 11 | 1871012 |
| 12 | 10581133 |
| 13 | 16392464 |
| 14 | 80317105 |
| 15 | 83488163 |
| 16 | 118369801 |
| 17 | 302067812 |
| 18 | 322745935 |
| 19 | 550205288 |
| 20 | 1052258173 |
| 21 | 1574839904 |
| 22 | 7323238945 |
| 23 | 10555628402 |
| 24 | 16111912423 |
| 25 | 77231036654 |
| 26 | 149541403201 |