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 | 43 |
| 2 | 4975 |
| 3 | 87377992 |
| 4 | 18385473430682423 |
| 5 | 5186411232443302687031694765612941 |
| 6 | 47469894147223278266560159220413635233953187522490823346090207081760 |