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 | 0 |
2 | 0 |
3 | 6 |
4 | 30 |
5 | 180 |
6 | 840 |
7 | 3900 |
8 | 17220 |
9 | 75174 |
10 | 323730 |
11 | 1386264 |
12 | 5909904 |
13 | 25136040 |
14 | 106739256 |
15 | 452846310 |
16 | 1920088086 |
17 | 8138356716 |
18 | 34486996824 |
19 | 146121685380 |
20 | 619066205340 |
21 | 2622628707270 |
22 | 11110214972010 |
23 | 47065148576496 |
24 | 199375154768160 |
25 | 844577145104400 |
26 | 3577713520710960 |