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) |
---|---|
2 | 1 |
3 | 1 |
4 | 1 |
5 | 3 |
6 | 2 |
7 | 10 |
8 | 15 |
9 | 35 |
10 | 28 |
11 | 252 |
12 | 210 |
13 | 2310 |
14 | 1980 |
15 | 1716 |
16 | 3003 |
17 | 45045 |
18 | 40040 |
19 | 680680 |
20 | 612612 |
21 | 554268 |
22 | 503880 |
23 | 10581480 |
24 | 9699690 |
25 | 44618574 |
26 | 41186376 |
27 | 114406600 |
28 | 106234700 |
29 | 2868336900 |
30 | 2677114440 |
31 | 77636318760 |
32 | 145568097675 |
33 | 136745788725 |