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 | 2 |
| 2 | 1320 |
| 3 | 4712 |
| 4 | 5628 |
| 5 | 7252 |
| 6 | 7852 |
| 7 | 14787 |
| 8 | 17340 |
| 9 | 61380 |
| 10 | 78750 |
| 11 | 254923 |
| 12 | 486605 |
| 13 | 1804842 |
| 14 | 4095086 |
| 15 | 12772344 |
| 16 | 42162995 |