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 | 2 |
| 2 | 3 |
| 3 | 8 |
| 4 | 11 |
| 5 | 36 |
| 6 | 816 |
| 7 | 1368 |
| 8 | 1388 |
| 9 | 2816 |
| 10 | 89408 |
| 11 | 445788 |
| 12 | 11284236 |
| 13 | 26064036 |
| 14 | 35598783 |
| 15 | 281768343 |
| 16 | 1414001388 |
| 17 | 8594921016 |
| 18 | 117759639662036 |
| 19 | 887689581254543 |
| 20 | 894084295764816 |
| 21 | 2581990177997183 |
| 22 | 2696788235658743 |