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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.

A360855 Array read by antidiagonals: T(m,n) is the number of triangles in the rook graph K_m X K_n.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 0
6 1
7 4
8 2
9 2
10 4
11 10
12 8
13 6
14 8
15 10
16 20
17 20
18 16
19 16
20 20
21 20
22 35
23 40
24 35
25 32
26 35
27 40
28 35
29 56
30 70
31 66
32 60
33 60
34 66
35 70
36 56
37 84
38 112
39 112
40 104
41 100
42 104
43 112
44 112
45 84
46 120
47 168
48 176
49 168
50 160
51 160
52 168
53 176
54 168
55 120
56 165
57 240
58 261
59 256
60 245
61 240
62 245
63 256
64 261
65 240
66 165

List of values

[0, 0, 0, 1, 0, 1, 4, 2, 2, 4, 10, 8, 6, 8, 10, 20, 20, 16, 16, 20, 20, 35, 40, 35, 32, 35, 40, 35, 56, 70, 66, 60, 60, 66, 70, 56, 84, 112, 112, 104, 100, 104, 112, 112, 84, 120, 168, 176, 168, 160, 160, 168, 176, 168, 120, 165, 240, 261, 256, 245, 240, 245, 256, 261, 240, 165]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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