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) |
|---|---|
| 3 | 1058 |
| 4 | 39952 |
| 5 | 155682 |
| 6 | 3113860 |
| 7 | 19681538 |
| 8 | 311853312 |
| 9 | 2415542018 |
| 10 | 33898728836 |
| 11 | 294554220578 |
| 12 | 3827188349968 |
| 13 | 35866638601250 |
| 14 | 442299574618756 |
| 15 | 4365923647238658 |
| 16 | 51942700201804032 |
| 17 | 531410627302657538 |
| 18 | 6169093269471927940 |
| 19 | 64681086501382749218 |
| 20 | 738453913359765339152 |
| 21 | 7872683691901209561122 |
| 22 | 88873260229652630182276 |