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 | 421 |
4 | 64727 |
5 | 33548731 |
6 | 68719441881 |
7 | 562949953225997 |
8 | 18446744073708516927 |
9 | 2417851639229258344138819 |
10 | 1267650600228229401496677076985 |
11 | 2658455991569831745807614120434020301 |
12 | 22300745198530623141535718272648360902500919 |