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 | 8 |
| 2 | 210 |
| 3 | 9709 |
| 4 | 636904 |
| 5 | 54039748 |
| 6 | 5621026396 |
| 7 | 692186010834 |
| 8 | 98457959756722 |
| 9 | 15883727818630152 |
| 10 | 2865366503771469410 |
| 11 | 571524481184700575470 |
| 12 | 124887520213444076248620 |