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 | 29 |
| 1 | 30 |
| 2 | 89 |
| 3 | 119 |
| 4 | 208 |
| 5 | 4071 |
| 6 | 16492 |
| 7 | 86531 |
| 8 | 535678 |
| 9 | 1157887 |
| 10 | 2851452 |
| 11 | 6860791 |
| 12 | 9712243 |
| 13 | 26285277 |
| 14 | 35997520 |
| 15 | 62282797 |
| 16 | 160563114 |
| 17 | 1346787709 |
| 18 | 12281652495 |
| 19 | 13628440204 |
| 20 | 53166973107 |
| 21 | 66795413311 |
| 22 | 186757799729 |