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 | 1 |
2 | 1 |
3 | 3 |
4 | 18 |
5 | 170 |
6 | 2181 |
7 | 34909 |
8 | 663152 |
9 | 14493060 |
10 | 356894730 |
11 | 9757244200 |
12 | 292895688618 |
13 | 9570802060144 |
14 | 338073560791701 |
15 | 12835113747145545 |
16 | 521191511664816256 |
17 | 22541443155867228040 |
18 | 1034573007453548334066 |
19 | 50226021692317694266696 |
20 | 2571751515973758412301940 |