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) |
---|---|
1 | 2 |
2 | 3 |
3 | 15 |
4 | 105 |
5 | 385 |
6 | 5005 |
7 | 17017 |
8 | 323323 |
9 | 1062347 |
10 | 30808063 |
11 | 434113615 |
12 | 35336848261 |
13 | 1448810778701 |
14 | 33545541876077 |
15 | 266186053068611 |
16 | 5426100312552455 |
17 | 9156001667401012567 |
18 | 42962777054727828199 |