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 | 36 |
| 2 | 52 |
| 3 | 548 |
| 4 | 1632 |
| 5 | 12692 |
| 6 | 51196 |
| 7 | 355396 |
| 8 | 1657632 |
| 9 | 10858368 |
| 10 | 54754656 |
| 11 | 346608044 |
| 12 | 1831830172 |
| 13 | 11344750308 |
| 14 | 61835276360 |
| 15 | 377379008580 |
| 16 | 2101523967056 |
| 17 | 12697531716136 |
| 18 | 71809422531596 |
| 19 | 430895582983328 |
| 20 | 2464705595705660 |