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) |
|---|---|
| 1 | 5 |
| 2 | 24 |
| 3 | 1151 |
| 4 | 6727710 |
| 5 | 97954001297811 |
| 6 | 12083213443785578998604325741 |
| 7 | 2111557350230332542969297514824119073134312726162508784857 |
| 8 | 5126406954746155312559668571658555244727150562238830979161154018392336359308299948544053564102183773577991816755308 |