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 | 56 |
| 2 | 8 |
| 3 | 7965 |
| 4 | 513 |
| 5 | 27 |
| 6 | 2128064 |
| 7 | 81856 |
| 8 | 2368 |
| 9 | 64 |
| 10 | 914929500 |
| 11 | 23846125 |
| 12 | 469625 |
| 13 | 7625 |
| 14 | 125 |
| 15 | 576689214816 |
| 16 | 10943504136 |
| 17 | 160767720 |
| 18 | 1898856 |
| 19 | 19656 |
| 20 | 216 |
| 21 | 500750172337212 |
| 22 | 7250862593527 |
| 23 | 83548607478 |
| 24 | 776598305 |
| 25 | 6081733 |
| 26 | 43561 |
| 27 | 343 |