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 | -199 |
| 2 | -19799 |
| 3 | -1940399 |
| 4 | -190139599 |
| 5 | -18631740599 |
| 6 | -1825720439399 |
| 7 | -178901971320799 |
| 8 | -17530567468999199 |
| 9 | -1717816709990600999 |
| 10 | -168328507011609898999 |
| 11 | -16494475870427779501199 |
| 12 | -1616290306794910781218799 |
| 13 | -158379955590030828779941399 |
| 14 | -15519619357516226309653038599 |