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 | 5 |
| 3 | 46 |
| 4 | 741 |
| 5 | 18571 |
| 6 | 669297 |
| 7 | 32814124 |
| 8 | 2100773233 |
| 9 | 170195445997 |
| 10 | 17021645372933 |
| 11 | 2059789285570890 |
| 12 | 296626678767581093 |
| 13 | 50131968501006775607 |
| 14 | 9826162452876095600065 |
| 15 | 2210936683865622516790232 |
| 16 | 566009617232052240393899457 |
| 17 | 163578990316746963096353733305 |