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 | 2 |
1 | 5 |
2 | 21 |
3 | 219 |
4 | 12686 |
5 | 15636041 |
6 | 4101615513409 |
7 | 12983864742986180266005 |
8 | 588668718546098799238432431873920456606 |
9 | 93859726557327916653208320240553220872245170780539985934198524439788 |