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 | 1 |
1 | 12 |
2 | 132 |
3 | 1452 |
4 | 15972 |
5 | 175692 |
6 | 1932612 |
7 | 21258666 |
8 | 233844600 |
9 | 2572282680 |
10 | 28295022360 |
11 | 311244287640 |
12 | 3423676622520 |
13 | 37660326891000 |
14 | 414262320281370 |
15 | 4556871492422700 |
16 | 50125432079728500 |
17 | 551378055176107500 |