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) |
|---|---|
| 0 | 3 |
| 1 | 5 |
| 2 | 11 |
| 3 | 29 |
| 4 | 83 |
| 5 | 59051 |
| 6 | 3518743763 |
| 7 | 4782971 |
| 8 | 6563 |
| 9 | 2357947693 |
| 10 | 59051 |
| 11 | 8649755859377 |
| 12 | 282429536483 |
| 13 | 2541865828331 |
| 14 | 4782971 |
| 15 | 14348909 |
| 16 | 6568408355712890627 |
| 17 | 762939453127 |
| 18 | 150094635296999123 |
| 19 | 15398217140735709790332844752065729 |
| 20 | 332525673007965087890627 |