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 | 0 |
| 2 | 1 |
| 3 | 232 |
| 4 | 27972 |
| 5 | 76867 |
| 6 | 25555552 |
| 7 | 7154664517 |
| 8 | 158229922851 |
| 9 | 2028787878202 |
| 10 | 2040061600402 |
| 11 | 2733623263372 |
| 12 | 52667666676625 |
| 13 | 675972505279576 |
| 14 | 28519896169891582 |
| 15 | 73542836563824537 |
| 16 | 74529570707592547 |
| 17 | 25552469511596425552 |
| 18 | 27835145788754153872 |