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 | 6 |
| 2 | 181 |
| 3 | 1092 |
| 4 | 32941 |
| 5 | 198738 |
| 6 | 5995081 |
| 7 | 36169224 |
| 8 | 1091071801 |
| 9 | 6582600030 |
| 10 | 198569072701 |
| 11 | 1197997036236 |
| 12 | 36138480159781 |
| 13 | 218028877994922 |
| 14 | 6577004820007441 |
| 15 | 39680057798039568 |
| 16 | 1196978738761194481 |
| 17 | 7221552490365206454 |
| 18 | 217843553449717388101 |