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 | 127 |
| 3 | 817 |
| 4 | 7651 |
| 5 | 13267 |
| 6 | 83167 |
| 7 | 188251 |
| 8 | 520417 |
| 9 | 751501 |
| 10 | 1332667 |
| 11 | 1689751 |
| 12 | 2519917 |
| 13 | 4691251 |
| 14 | 8331667 |
| 15 | 75015001 |
| 16 | 88015417 |
| 17 | 117206251 |
| 18 | 133326667 |
| 19 | 325510417 |
| 20 | 833316667 |
| 21 | 7500150001 |
| 22 | 9492356251 |
| 23 | 10950460417 |