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) |
|---|---|
| 0 | 4 |
| 1 | 9 |
| 2 | 25 |
| 3 | 49 |
| 4 | 121 |
| 5 | 221 |
| 6 | 289 |
| 7 | 529 |
| 8 | 667 |
| 9 | 899 |
| 10 | 1147 |
| 11 | 1591 |
| 12 | 2021 |
| 13 | 1849 |
| 14 | 2773 |
| 15 | 3551 |
| 16 | 4087 |
| 17 | 4819 |
| 18 | 4757 |
| 19 | 5041 |
| 20 | 7519 |
| 21 | 7663 |
| 22 | 8549 |
| 23 | 9991 |
| 24 | 10379 |
| 25 | 13231 |
| 26 | 11227 |
| 27 | 14659 |
| 28 | 11881 |
| 29 | 21877 |
| 30 | 25283 |
| 31 | 18209 |
| 32 | 22331 |
| 33 | 20989 |
| 34 | 22499 |
| 35 | 25591 |
| 36 | 27221 |
| 37 | 29503 |
| 38 | 31313 |
| 39 | 34547 |