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 | 4 |
| 2 | 27 |
| 3 | 250 |
| 4 | 1029 |
| 5 | 6655 |
| 6 | 13182 |
| 7 | 39304 |
| 8 | 61731 |
| 9 | 133837 |
| 10 | 341446 |
| 11 | 446865 |
| 12 | 911754 |
| 13 | 1378420 |
| 14 | 1669647 |
| 15 | 2387929 |
| 16 | 3870802 |
| 17 | 5955991 |
| 18 | 6809430 |
| 19 | 9925179 |
| 20 | 12526885 |
| 21 | 14004612 |
| 22 | 19228521 |
| 23 | 23443267 |
| 24 | 31018636 |
| 25 | 43808304 |
| 26 | 51515050 |
| 27 | 55729077 |