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 | 3 |
| 2 | 27 |
| 3 | 395 |
| 4 | 4998 |
| 5 | 35390 |
| 6 | 167625 |
| 7 | 607919 |
| 8 | 1826778 |
| 9 | 4775228 |
| 10 | 11211034 |
| 11 | 24167306 |
| 12 | 48600665 |
| 13 | 92261185 |
| 14 | 166831642 |
| 15 | 289389192 |
| 16 | 484248471 |
| 17 | 785251265 |
| 18 | 1238574341 |
| 19 | 1906133765 |
| 20 | 2869671064 |
| 21 | 4235613920 |
| 22 | 6140811719 |
| 23 | 8759254221 |
| 24 | 12309889872 |