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 | 91 |
| 2 | 4095 |
| 3 | 121485 |
| 4 | 2672670 |
| 5 | 46504458 |
| 6 | 666563898 |
| 7 | 8093990190 |
| 8 | 84986896995 |
| 9 | 783768050065 |
| 10 | 6426898010533 |
| 11 | 47325339895743 |
| 12 | 315502265971620 |
| 13 | 1917283000904460 |
| 14 | 10682005290753420 |
| 15 | 54834293825867556 |
| 16 | 260462895672870891 |
| 17 | 1149101010321489225 |