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 | 7 |
| 3 | 203 |
| 4 | 1379 |
| 5 | 11977 |
| 6 | 39991 |
| 7 | 577129 |
| 8 | 2359469 |
| 9 | 4780447 |
| 10 | 6521291 |
| 11 | 6640739 |
| 12 | 9904979 |
| 13 | 21511301 |
| 14 | 28434413 |
| 15 | 34050611 |
| 16 | 113694413 |
| 17 | 189117439 |
| 18 | 222281549 |
| 19 | 250163599 |
| 20 | 282046373 |
| 21 | 391803601 |
| 22 | 941748059 |
| 23 | 1269166759 |
| 24 | 1308225583 |