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 | 1 |
| 2 | 1 |
| 3 | 7 |
| 4 | 95 |
| 5 | 4628 |
| 6 | 760731 |
| 7 | 439476534 |
| 8 | 895794710762 |
| 9 | 6512183359880844 |
| 10 | 170617184427498641390 |
| 11 | 16261113406024864291983616 |
| 12 | 5683340191820651519596089554647 |
| 13 | 7334531479545984537334675978032833750 |
| 14 | 35157813638509073199087893774184443496308877 |