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 | 7 |
| 3 | 163 |
| 4 | 8873 |
| 5 | 930581 |
| 6 | 166430695 |
| 7 | 46667364787 |
| 8 | 19297882224241 |
| 9 | 11234437076981197 |
| 10 | 8878197269454501791 |
| 11 | 9248927456512116197243 |
| 12 | 12398185397412654458286937 |
| 13 | 20956785258468167606550738661 |
| 14 | 43903683099962420167754883303799 |
| 15 | 112314079836539257907798807510678371 |