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 | 1 |
2 | 3 |
3 | 21 |
4 | 45 |
5 | 465 |
6 | 2835 |
7 | 40005 |
8 | 80325 |
9 | 1448685 |
10 | 14501025 |
11 | 319178475 |
12 | 1915538625 |
13 | 49810085325 |
14 | 697383762075 |
15 | 20922151375125 |
16 | 41844941263125 |
17 | 1422738857665125 |
18 | 25609397130442125 |
19 | 973158947113728375 |
20 | 9731598751921921875 |
21 | 408727342477198119375 |
22 | 8992003678359610033125 |
23 | 413632218513350843881875 |