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 | 34 |
| 2 | 1156 |
| 3 | 39304 |
| 4 | 1336336 |
| 5 | 45435424 |
| 6 | 1544804416 |
| 7 | 52523350144 |
| 8 | 1785793904896 |
| 9 | 60716992766464 |
| 10 | 2064377754059776 |
| 11 | 70188843638032384 |
| 12 | 2386420683693101056 |
| 13 | 81138303245565435904 |
| 14 | 2758702310349224820736 |
| 15 | 93795878551873643905024 |
| 16 | 3189059870763703892770816 |