A334704 - cp's OEIS frontend

A334704 Triangle read by rows: T(n,k) (1 <= k <= n) = number of ways to choose three collinear points from an n X k grid of points.

n	a(n)
1	0
2	0
3	0
4	1
5	2
6	8
7	4
8	8
9	20
10	44
11	10
12	20
13	43
14	84
15	152
16	20
17	40
18	78
19	140
20	240
21	372
22	35
23	70
24	130
25	224
26	369
27	558
28	824
29	56
30	112
31	200
32	332
33	528
34	780
35	1132
36	1544
37	84
38	168
39	293
40	472
41	734
42	1064
43	1519
44	2052
45	2712
46	120
47	240
48	410
49	648
50	988
51	1408
52	1982
53	2652
54	3480
55	4448

[0, 0, 0, 1, 2, 8, 4, 8, 20, 44, 10, 20, 43, 84, 152, 20, 40, 78, 140, 240, 372, 35, 70, 130, 224, 369, 558, 824, 56, 112, 200, 332, 528, 780, 1132, 1544, 84, 168, 293, 472, 734, 1064, 1519, 2052, 2712, 120, 240, 410, 648, 988, 1408, 1982, 2652, 3480, 4448]

cp's OEIS Frontend

A334704 Triangle read by rows: T(n,k) (1 <= k <= n) = number of ways to choose three collinear points from an n X k grid of points.

Table of values

List of values