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 | 64 |
| 2 | 4096 |
| 3 | 83737 |
| 4 | 744272 |
| 5 | 4106403 |
| 6 | 17068664 |
| 7 | 58944337 |
| 8 | 178002044 |
| 9 | 484800960 |
| 10 | 1215412314 |
| 11 | 2845433373 |
| 12 | 6286999243 |
| 13 | 13216899344 |
| 14 | 26605753969 |
| 15 | 51547601046 |
| 16 | 96528061541 |
| 17 | 175319673499 |
| 18 | 309757515173 |
| 19 | 533729732564 |
| 20 | 898819275234 |