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 | 0 |
| 2 | 4 |
| 3 | 16 |
| 4 | 36 |
| 5 | 256 |
| 6 | 676 |
| 7 | 1296 |
| 8 | 5476 |
| 9 | 7056 |
| 10 | 9216 |
| 11 | 41616 |
| 12 | 69696 |
| 13 | 87616 |
| 14 | 147456 |
| 15 | 163216 |
| 16 | 181476 |
| 17 | 329476 |
| 18 | 341056 |
| 19 | 367236 |
| 20 | 527076 |
| 21 | 541696 |
| 22 | 583696 |
| 23 | 763876 |
| 24 | 781456 |
| 25 | 929296 |
| 26 | 2143296 |
| 27 | 2509056 |
| 28 | 2547216 |
| 29 | 2903616 |
| 30 | 4145296 |
| 31 | 4301476 |