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) |
---|---|
19 | 640237370572800 |
20 | 125042114810880000 |
21 | 12663309118470912000 |
22 | 885531242655070387200 |
23 | 48050907406540671926016 |
24 | 2155959161260047868965120 |
25 | 83244478130310272277600000 |
26 | 2842577637658581528366266112 |
27 | 87562415111185051655245105920 |
28 | 2469899876154506406497571909952 |