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 | 5 |
| 2 | 105 |
| 3 | 1946 |
| 4 | 24587 |
| 5 | 211121 |
| 6 | 2116450 |
| 7 | 15084593 |
| 8 | 112714143 |
| 9 | 511843593 |
| 10 | 2841058530 |
| 11 | 10796121020 |
| 12 | 48330908582 |