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 | 21 |
| 3 | 5110 |
| 4 | 3143 |
| 5 | 367512 |
| 6 | 3858625 |
| 7 | 188443738 |
| 8 | 4558781926 |
| 9 | 165780766701 |
| 10 | 5415891438878 |
| 11 | 189247523369764 |
| 12 | 6553114775753702 |
| 13 | 229298263096647662 |
| 14 | 8027176450120824795 |
| 15 | 281624648305633428630 |
| 16 | 9882003741109888621778 |