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 | 1 |
| 1 | 24 |
| 2 | 577 |
| 3 | 13872 |
| 4 | 333505 |
| 5 | 8017992 |
| 6 | 192765313 |
| 7 | 4634385504 |
| 8 | 111418017409 |
| 9 | 2678666803320 |
| 10 | 64399421297089 |
| 11 | 1548264777933456 |
| 12 | 37222754091700033 |
| 13 | 894894362978734248 |
| 14 | 21514687465581321985 |
| 15 | 517247393536930461888 |
| 16 | 12435452132351912407297 |