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 | 73 |
| 4 | 9271 |
| 5 | 3195367 |
| 6 | 6769801 |
| 7 | 15413863 |
| 8 | 24540337 |
| 9 | 47424961 |
| 10 | 52268743 |
| 11 | 146583343 |
| 12 | 384586849 |
| 13 | 469501471 |
| 14 | 475882081 |
| 15 | 859764727 |
| 16 | 1097475991 |
| 17 | 1169323417 |
| 18 | 1400034919 |
| 19 | 2518532047 |
| 20 | 2870143993 |
| 21 | 3258854623 |
| 22 | 5609707729 |
| 23 | 6022970047 |
| 24 | 6420870271 |
| 25 | 9011348521 |