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 | 0 |
| 1 | 1 |
| 2 | 16448 |
| 3 | 7175547 |
| 4 | 536879104 |
| 5 | 15258828125 |
| 6 | 235092632256 |
| 7 | 2373781166743 |
| 8 | 17592187092992 |
| 9 | 102945568438809 |
| 10 | 500000005000000 |
| 11 | 2088624094451411 |
| 12 | 7703510805209088 |
| 13 | 25592946538419637 |
| 14 | 77784047831612864 |