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 | 38 |
| 2 | 1445 |
| 3 | 54948 |
| 4 | 2089469 |
| 5 | 79454770 |
| 6 | 3021370729 |
| 7 | 114891542472 |
| 8 | 4368899984665 |
| 9 | 166133090959742 |
| 10 | 6317426356454861 |
| 11 | 240228334636244460 |
| 12 | 9134994142533744341 |
| 13 | 347370005750918529418 |
| 14 | 13209195212677437862225 |
| 15 | 502296788087493557293968 |