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 | 248665082 |
| 2 | 248695370 |
| 3 | 249063875 |
| 4 | 253674980 |
| 5 | 256175640 |
| 6 | 257930648 |
| 7 | 257938064 |
| 8 | 260577504 |
| 9 | 260817480 |
| 10 | 263987504 |
| 11 | 264713960 |
| 12 | 267766632 |
| 13 | 267953048 |
| 14 | 269037548 |
| 15 | 269045192 |
| 16 | 269174192 |
| 17 | 269307584 |
| 18 | 269735900 |
| 19 | 269937500 |