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 | 88209 |
| 2 | 90288 |
| 3 | 125928 |
| 4 | 196020 |
| 5 | 368280 |
| 6 | 829521 |
| 7 | 1978020 |
| 8 | 2328480 |
| 9 | 5513508 |
| 10 | 8053155 |
| 11 | 19798020 |
| 12 | 86531940 |
| 13 | 197998020 |
| 14 | 554344560 |
| 15 | 556326540 |
| 16 | 1960396020 |
| 17 | 1979998020 |
| 18 | 5543944560 |
| 19 | 5925169800 |
| 20 | 8820988209 |
| 21 | 9028890288 |
| 22 | 12592925928 |
| 23 | 14011538112 |
| 24 | 19602196020 |
| 25 | 19799998020 |