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 | 6 |
4 | 1 |
5 | 15 |
6 | 90 |
7 | 1 |
8 | 28 |
9 | 70 |
10 | 420 |
11 | 2520 |
12 | 1 |
13 | 45 |
14 | 210 |
15 | 1260 |
16 | 3150 |
17 | 18900 |
18 | 113400 |
19 | 1 |
20 | 66 |
21 | 495 |
22 | 924 |
23 | 2970 |
24 | 13860 |
25 | 34650 |
26 | 83160 |
27 | 207900 |
28 | 1247400 |
29 | 7484400 |
30 | 1 |
31 | 91 |
32 | 1001 |
33 | 3003 |
34 | 6006 |
35 | 45045 |
36 | 84084 |
37 | 210210 |
38 | 270270 |
39 | 1261260 |
40 | 3153150 |
41 | 7567560 |
42 | 18918900 |
43 | 113513400 |
44 | 681080400 |