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 | 2047 |
| 1 | 129055 |
| 2 | 932067 |
| 3 | 3299692 |
| 4 | 5548725 |
| 5 | 25323961 |
| 6 | 42250958 |
| 7 | 202390343 |
| 8 | 806394569 |
| 9 | 1409681880 |
| 10 | 2492481691 |
| 11 | 12894763567 |
| 12 | 21811487392 |
| 13 | 103089080516 |
| 14 | 176362268954 |
| 15 | 824702327536 |
| 16 | 1378954303613 |
| 17 | 2508261212719 |