cp's OEIS Frontend

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.

A182073 Square array read by antidiagonals: T(n,k) = n!*k! / (floor(n/2)! * floor(k/2)! * floor((n+k)/2)!).

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 2
6 6
7 2
8 2
9 6
10 6
11 3
12 2
13 3
14 6
15 30
16 6
17 6
18 6
19 6
20 30
21 20
22 10
23 4
24 6
25 4
26 10
27 20
28 140
29 20
30 20
31 12
32 12
33 20
34 20
35 140
36 70
37 35
38 10
39 15
40 6
41 15
42 10
43 35
44 70
45 630
46 70
47 70
48 30
49 30
50 30
51 30
52 70
53 70
54 630
55 252
56 126
57 28
58 42
59 12
60 30
61 12
62 42
63 28
64 126
65 252

List of values

[1, 1, 1, 2, 1, 2, 6, 2, 2, 6, 6, 3, 2, 3, 6, 30, 6, 6, 6, 6, 30, 20, 10, 4, 6, 4, 10, 20, 140, 20, 20, 12, 12, 20, 20, 140, 70, 35, 10, 15, 6, 15, 10, 35, 70, 630, 70, 70, 30, 30, 30, 30, 70, 70, 630, 252, 126, 28, 42, 12, 30, 12, 42, 28, 126, 252]