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 | 5 |
| 1 | -956 |
| 2 | -375 |
| 3 | 163823028 |
| 4 | 15625 |
| 5 | -15596225303980 |
| 6 | -546875 |
| 7 | 1247220779824098212 |
| 8 | 17578125 |
| 9 | -91597497639855832244124 |
| 10 | -537109375 |
| 11 | 6394838587727583881086964116 |
| 12 | 15869140625 |
| 13 | -431694043145875922302762745864588 |
| 14 | -457763671875 |