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 | 100 |
| 2 | 147 |
| 3 | 703 |
| 4 | 932 |
| 5 | 1172 |
| 6 | 3389 |
| 7 | 7089 |
| 8 | 8767 |
| 9 | 11155 |
| 10 | 17457 |
| 11 | 20810 |
| 12 | 25355 |
| 13 | 1129226 |
| 14 | 1741049 |
| 15 | 1960780 |
| 16 | 2179637 |
| 17 | 2859688 |
| 18 | 11014240 |
| 19 | 75249086 |
| 20 | 132665447 |
| 21 | 499298451 |