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 | 10 |
| 3 | 234 |
| 4 | 19026 |
| 5 | 5741797 |
| 6 | 6093564449 |
| 7 | 23025368248778 |
| 8 | 309978055996363953 |
| 9 | 14848281990251202621848 |
| 10 | 2531566579339095935434773023 |
| 11 | 1536279445900820560553369496441851 |