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 | 79 |
| 3 | 1837 |
| 4 | 66021 |
| 5 | 3374176 |
| 6 | 231848191 |
| 7 | 20570267229 |
| 8 | 2285620096717 |
| 9 | 310524073877026 |
| 10 | 50598503336716611 |
| 11 | 9732804817777566361 |
| 12 | 2180831456691952213969 |
| 13 | 562835395375423511668692 |
| 14 | 165687992856606963112408291 |
| 15 | 55166524646338775672718351481 |
| 16 | 20620925283916296038124156761241 |