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 | 8 |
| 3 | 44 |
| 4 | 494 |
| 5 | 858 |
| 6 | 49494 |
| 7 | 445544 |
| 8 | 819918 |
| 9 | 4462644 |
| 10 | 8853588 |
| 11 | 8913198 |
| 12 | 81099018 |
| 13 | 441525144 |
| 14 | 882060288 |
| 15 | 8100990018 |
| 16 | 44105250144 |
| 17 | 49781418794 |
| 18 | 85831713858 |
| 19 | 447597795744 |
| 20 | 810009900018 |
| 21 | 889249942988 |
| 22 | 4410052500144 |
| 23 | 4450696960544 |
| 24 | 4927434347294 |
| 25 | 80512566521508 |
| 26 | 81000099000018 |