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 | 1 |
| 1 | 7 |
| 2 | 12 |
| 3 | 161 |
| 4 | 132 |
| 5 | 847 |
| 6 | 1332 |
| 7 | 32977 |
| 8 | 12612 |
| 9 | 76657 |
| 10 | 116052 |
| 11 | 1401491 |
| 12 | 1054692 |
| 13 | 6339067 |
| 14 | 9533172 |
| 15 | 459046049 |
| 16 | 85962372 |
| 17 | 512834077 |
| 18 | 774316692 |
| 19 | 9515828021 |
| 20 | 6971471652 |
| 21 | 37110907687 |
| 22 | 62753730612 |
| 23 | 2474540324347 |
| 24 | 564825518532 |
| 25 | -11328646894103 |
| 26 | 5083597438932 |
| 27 | 2154664585390751 |