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 | 39 |
| 2 | 1482 |
| 3 | 56316 |
| 4 | 2140008 |
| 5 | 81320304 |
| 6 | 3090171552 |
| 7 | 117426518976 |
| 8 | 4462207721088 |
| 9 | 169563893400603 |
| 10 | 6443427949194756 |
| 11 | 244850262068331465 |
| 12 | 9304309958555963676 |
| 13 | 353563778423582603916 |
| 14 | 13435423580037466349472 |