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 | 29 |
| 2 | 812 |
| 3 | 22736 |
| 4 | 636608 |
| 5 | 17824618 |
| 6 | 499077936 |
| 7 | 13973864310 |
| 8 | 391259299536 |
| 9 | 10955011154976 |
| 10 | 306733334006862 |
| 11 | 8588337963333660 |
| 12 | 240467992209756738 |
| 13 | 6732950603977585764 |
| 14 | 188518328027869860720 |
| 15 | 5278393098774299901978 |