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 | 4 |
| 2 | 64 |
| 3 | 484 |
| 4 | 4624 |
| 5 | 8464 |
| 6 | 26244 |
| 7 | 28224 |
| 8 | 68644 |
| 9 | 228484 |
| 10 | 446224 |
| 11 | 824464 |
| 12 | 868624 |
| 13 | 2862864 |
| 14 | 8282884 |
| 15 | 8868484 |
| 16 | 22448644 |
| 17 | 26646244 |
| 18 | 44462224 |
| 19 | 82228624 |
| 20 | 82664464 |
| 21 | 222248464 |
| 22 | 284866884 |
| 23 | 662444644 |
| 24 | 866242624 |
| 25 | 4246868224 |
| 26 | 4444622224 |
| 27 | 6266622244 |
| 28 | 6282464644 |
| 29 | 6668682244 |
| 30 | 8264264464 |
| 31 | 8268628624 |