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 | 12 |
| 1 | 49 |
| 2 | 1188 |
| 3 | 4801 |
| 4 | 116412 |
| 5 | 470449 |
| 6 | 11407188 |
| 7 | 46099201 |
| 8 | 1117788012 |
| 9 | 4517251249 |
| 10 | 109531817988 |
| 11 | 442644523201 |
| 12 | 10733000374812 |
| 13 | 43374646022449 |
| 14 | 1051724504913588 |
| 15 | 4250272665676801 |
| 16 | 103058268481156812 |
| 17 | 416483346590304049 |