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 | 8 |
| 2 | 88 |
| 3 | 776 |
| 4 | 6424 |
| 5 | 52040 |
| 6 | 418264 |
| 7 | 3351944 |
| 8 | 26833048 |
| 9 | 214716872 |
| 10 | 1717892440 |
| 11 | 13743611912 |
| 12 | 109950312472 |
| 13 | 879606751304 |
| 14 | 7036866765016 |
| 15 | 56294972383880 |
| 16 | 450359893862296 |
| 17 | 3602879495272136 |
| 18 | 28823036995298392 |
| 19 | 230584299061751048 |
| 20 | 1844674401792100120 |