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 | 11 |
| 2 | 271 |
| 3 | 641 |
| 4 | 2161 |
| 5 | 33751 |
| 6 | 40961 |
| 7 | 58321 |
| 8 | 138241 |
| 9 | 196831 |
| 10 | 270001 |
| 11 | 297911 |
| 12 | 466561 |
| 13 | 506531 |
| 14 | 795071 |
| 15 | 1326511 |
| 16 | 1406081 |
| 17 | 1851931 |
| 18 | 2160001 |
| 19 | 3890171 |
| 20 | 4218751 |
| 21 | 5314411 |
| 22 | 5513681 |
| 23 | 6585031 |
| 24 | 7290001 |
| 25 | 8043571 |
| 26 | 11910161 |
| 27 | 12597121 |
| 28 | 12950291 |
| 29 | 14815441 |