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 | 1 |
| 2 | 20737 |
| 3 | 93527 |
| 4 | 228727 |
| 5 | 373457 |
| 6 | 540857 |
| 7 | 2231327 |
| 8 | 11232137 |
| 9 | 15088847 |
| 10 | 15235703 |
| 11 | 24601943 |
| 12 | 43092527 |
| 13 | 49891487 |
| 14 | 66171767 |
| 15 | 71429177 |
| 16 | 137134727 |
| 17 | 207426737 |
| 18 | 209402327 |
| 19 | 269165561 |
| 20 | 302357057 |
| 21 | 383696711 |
| 22 | 513013327 |