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 | 32 |
| 2 | 634 |
| 3 | 8352 |
| 4 | 85138 |
| 5 | 781712 |
| 6 | 6965108 |
| 7 | 63676276 |
| 8 | 573884026 |
| 9 | 5345916472 |
| 10 | 49611640680 |
| 11 | 461953566404 |
| 12 | 4330354287396 |
| 13 | 40272872295148 |
| 14 | 374708736274324 |
| 15 | 3480925090005388 |
| 16 | 32298776524667360 |
| 17 | 300205447716571716 |
| 18 | 2790072113514722888 |
| 19 | 25940651276104559604 |
| 20 | 241231567695925299556 |