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 | 1 |
| 1 | 11 |
| 2 | 128 |
| 3 | 1647 |
| 4 | 20480 |
| 5 | 248207 |
| 6 | 2984688 |
| 7 | 35829407 |
| 8 | 429977600 |
| 9 | 5159773791 |
| 10 | 61917354224 |
| 11 | 743008356047 |
| 12 | 8916100427520 |
| 13 | 106993205350511 |
| 14 | 1283918464510448 |
| 15 | 15407021574535743 |
| 16 | 184884258894970880 |