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 | 2 |
2 | 10 |
3 | 290 |
4 | 252010 |
5 | 190526868290 |
6 | 108901462620994495704010 |
7 | 35578585682975584013618831758290462042094536290 |
8 | 3797507277602505611886017656109365392377072888898472983341161302567287339676755374368286356010 |