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 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 1490 |
5 | 67027582 |
6 | 144115188036455750 |
7 | 1329227995784915872903806998967001298 |
8 | 226156424291633194186662080095093570025917938800079226639565284090686126876 |