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 | 69 |
| 2 | 4761 |
| 3 | 218637 |
| 4 | 9803278 |
| 5 | 449797912 |
| 6 | 20694430627 |
| 7 | 950821989599 |
| 8 | 43676385937074 |
| 9 | 2006497292305518 |
| 10 | 92180116069921220 |
| 11 | 4234783426805045787 |
| 12 | 194547099770290413016 |
| 13 | 8937559013725835053331 |
| 14 | 410594472108308448412855 |