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 | 2 |
| 1 | 3 |
| 2 | 13 |
| 3 | 175 |
| 4 | 30651 |
| 5 | 939484151 |
| 6 | 882630469980252103 |
| 7 | 779036546537560708779146801314890911 |
| 8 | 606897940841168991954208317469740424253072728119076070803668647790914127 |