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 | 1 |
2 | 9 |
3 | 552 |
4 | 85842 |
5 | 24653700 |
6 | 11219022936 |
7 | 7393496092416 |
8 | 6649411839351120 |
9 | 7822998961379912592 |
10 | 11662362974001268456560 |
11 | 21487905123054927319268352 |
12 | 47958258768575173308988367040 |
13 | 127523196462392124262710980808384 |
14 | 398397752352904475778061859746030080 |
15 | 1445051361690004153927005867189533921280 |