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) |
---|---|
5 | 1 |
6 | 45 |
7 | 1540 |
8 | 49840 |
9 | 1632099 |
10 | 55545735 |
11 | 1987186025 |
12 | 75078221130 |
13 | 2999597292406 |
14 | 126693681294180 |
15 | 5650573288138415 |
16 | 265702055516788800 |
17 | 13149171975158028874 |
18 | 683615652343279677360 |
19 | 37269087381803600233878 |
20 | 2126880663709734887508320 |
21 | 126841125623724152774643951 |