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 | 2048 |
| 1 | 48828125 |
| 2 | 8589934592 |
| 3 | 285311670611 |
| 4 | 4049565169664 |
| 5 | 34271896307633 |
| 6 | 204800000000000 |
| 7 | 952809757913927 |
| 8 | 3670344486987776 |
| 9 | 12200509765705829 |
| 10 | 36028797018963968 |
| 11 | 96549157373046875 |
| 12 | 238572050223552512 |
| 13 | 550329031716248441 |
| 14 | 1196683881290399744 |
| 15 | 2472159215084012303 |