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 | 4 |
| 2 | 61 |
| 3 | 46 |
| 4 | 652 |
| 5 | 4201 |
| 6 | 6904 |
| 7 | 48361 |
| 8 | 63556 |
| 9 | 441262 |
| 10 | 6758401 |
| 11 | 4034914 |
| 12 | 61277761 |
| 13 | 46880176 |
| 14 | 654534862 |
| 15 | 4281473701 |
| 16 | 6927694924 |
| 17 | 48196897171 |
| 18 | 63767491786 |
| 19 | 449609778472 |
| 20 | 6777261159901 |
| 21 | 4011156408934 |
| 22 | 61444068129571 |