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 | 64 |
| 2 | 8192 |
| 3 | 133757 |
| 4 | 3157171 |
| 5 | 63612987 |
| 6 | 1365216668 |
| 7 | 28906043997 |
| 8 | 610488691748 |
| 9 | 12956909898199 |
| 10 | 274201107406761 |
| 11 | 5808903569877147 |
| 12 | 123055467606278343 |
| 13 | 2606329081200670585 |
| 14 | 55211783952761651310 |
| 15 | 1169521808389101196131 |