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 | 35 |
| 2 | 1190 |
| 3 | 40460 |
| 4 | 1375640 |
| 5 | 46771760 |
| 6 | 1590239840 |
| 7 | 54068153965 |
| 8 | 1838317214580 |
| 9 | 62502784608495 |
| 10 | 2125094653323180 |
| 11 | 72253217418556020 |
| 12 | 2456609365220213280 |
| 13 | 83524717499123743920 |
| 14 | 2839840363745848388310 |
| 15 | 96554571305730654116385 |