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 | 3 |
| 2 | 26 |
| 3 | 836 |
| 4 | 118304 |
| 5 | 56868928 |
| 6 | 77348401664 |
| 7 | 336344302104576 |
| 8 | 6256170906514948096 |
| 9 | 461016146852019430227968 |
| 10 | 101290253760680508433761304576 |
| 11 | 64552542594684734744030356172701696 |