A320543 - cp's OEIS frontend

A320543 (1/2) * number of ways to select 3 distinct points forming a triangle of unsigned area = 1 from a rectangle of grid points with side lengths j and k, written as triangle T(j,k), j<=k.

n	a(n)
1	0
2	3
3	16
4	8
5	35
6	72
7	15
8	62
9	125
10	212
11	24
12	95
13	190
14	319
15	476
16	35
17	136
18	269
19	450
20	669
21	936
22	48
23	183
24	360
25	601
26	892
27	1245
28	1652
29	63
30	238
31	467
32	776
33	1149
34	1602
35	2123
36	2724
37	80
38	299
39	584
40	967
41	1430
42	1991
43	2636
44	3379
45	4188
46	99
47	368
48	717
49	1186
50	1751
51	2436
52	3223
53	4130
54	5117
55	6248

[0, 3, 16, 8, 35, 72, 15, 62, 125, 212, 24, 95, 190, 319, 476, 35, 136, 269, 450, 669, 936, 48, 183, 360, 601, 892, 1245, 1652, 63, 238, 467, 776, 1149, 1602, 2123, 2724, 80, 299, 584, 967, 1430, 1991, 2636, 3379, 4188, 99, 368, 717, 1186, 1751, 2436, 3223, 4130, 5117, 6248]

cp's OEIS Frontend

A320543 (1/2) * number of ways to select 3 distinct points forming a triangle of unsigned area = 1 from a rectangle of grid points with side lengths j and k, written as triangle T(j,k), j<=k.

Table of values

List of values