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 | 4 |
| 2 | 59 |
| 3 | 713 |
| 4 | 2187 |
| 5 | 16384 |
| 6 | 33048 |
| 7 | 106056 |
| 8 | 217603 |
| 9 | 523733 |
| 10 | 823543 |
| 11 | 2097152 |
| 12 | 3014848 |
| 13 | 5663370 |
| 14 | 8603223 |
| 15 | 14688611 |
| 16 | 19487171 |
| 17 | 35831808 |
| 18 | 45765000 |
| 19 | 70508164 |
| 20 | 94687187 |
| 21 | 139133363 |
| 22 | 170859375 |
| 23 | 268435456 |
| 24 | 322831872 |
| 25 | 448523376 |
| 26 | 563223955 |
| 27 | 760729349 |