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 | 16 |
| 2 | 512 |
| 3 | 11814 |
| 4 | 285613 |
| 5 | 6947036 |
| 6 | 168833401 |
| 7 | 4104946296 |
| 8 | 99807877377 |
| 9 | 2426739457531 |
| 10 | 59004229082101 |
| 11 | 1434640787398200 |
| 12 | 34882150655708793 |
| 13 | 848131798093298119 |
| 14 | 20621651341736039102 |
| 15 | 501399081664691938244 |